Aisch, G., & Marsh, B. (2014). How Likely Is It That Birth Control Could Let You Down? https://www.nytimes.com/interactive/2014/09/14/sunday-review/unplanned-pregnancies.html. Retrieved on March 23, 2017.
American Psychiatric Association. (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). Washington, DC: Author.
Anderson, M. R., Klink, K., & Cohrssen, A. (2004). Evaluation of vaginal complaints. Journal of The American Medical Association, 291, 1368-1379.
Bearman, P. S., & Brückner, H. (2001). Promising the future: Virginity pledges and first intercourse. American Journal of Sociology, 106, 859-912.
Buhi, E.R., Daley, E.M., Oberne, A., Smith, S.A., Schneider, T., Fuhrmann, H.J.(2010). Quality and accuracy of sexual health information web sites visited by young people. Journal of Adolescent Health, Volume 47, Issue 2 , 206 – 208.
Capogrosso, P., Colicchia, M., Ventimiglia, E., Castagna, G., Clementi, M. C., Suardi, N., Castiglione, F., Briganti, A., Cantiello, F., Damiano, R., Montorsi, F., & Salonia, A. (2013). One patient out of four with newly diagnosed erectile dysfunction is a young man—worrisome picture from the everyday clinical practice. Journal of Sexual Medicine, 10, 1833-1841.
Carlson, N. R. (1986). Physiology of behavior. Boston: Allyn and Bacon.
Centers for Disease Control and Prevention (October 2016). Sexually transmitted disease surveillance, 2015. https://www.cdc.gov/std/stats15/std-surveillance-2015-print.pdf Retrieved on May 6, 2017. Centers for Disease Control, National HIV, STD, and Hepatitis Testing.
Charnetski, C. J., & Brennan, F. X. (2004). Sexual frequency and salivary Immunoglobulin A (IgA). Psychological Reports, 94, 839-844.
DiClemente, R. J., Salazar, L. F., & Crosby, R. A. (2007). A review of STD/HIV preventive interventions for adolescents: Sustaining effects using an ecological approach. Journal of Pediatric Psychology, 32, 888-906.
Ditzen, B., Hoppmann, C., & Klumb, P. (2008). Positive couple interactions and daily cortisol: On the stress-protecting role of intimacy. Psychosomatic Medicine, 70, 883-889.
Dreger, A. (1998). Ambiguous sex—or ambivalent medicine? Ethical issues in the treatment of intersexuality. Hastings Center Report, 28, 24-35.
Faddy, M.J., Gosden, R. G., Gougeon, A., Richardson, S. J., & Nelson, J. F. (1992). Accelerated disappearance of ovarian follicles in mid-life: Implications for forecasting menopause. Human Reproduction, 7, 1342–1346.
Fadul, C. E., Stommel, E. W., Dragnev, K. H., Eskey, C. J., & Dalmau, J. O. (2005). Focal paraneoplastic limbic encephalitis presenting as orgasmic epilepsy. Journal of Neuro Oncology, 72, 195–198.
Fleming, D. T., et al. (1997). Herpes simplex virus type 2 in the United States, 1976–1994. New England Journal of Medicine, 337, 1105–1111.
Forster, K. (December 8, 2016). STIs in people aged 50 to 70 have risen by more than a third over the last decade. Independent. http://www.independent.co.uk/life-style/health-and-fa milies/health-news/older-people-stis-sexually-transmitted-infections-50-to-70-chief-med ical-officer-report-dame-sally-a7463861.html Retrieved on May 9, 2017.
Fuxman, S., De Los Santos, S., Finkelstein, D., Landon, M. K., & O’Donnell, L. (2015). Sources of information on sex and antecedents of early sexual initiation among urban Latino youth. American Journal of Sexuality Education, 10, 333-350.
Ginger, V. A. T., & Yang, C. C. (2011). Functional anatomy of the female sex organs. In Mulhall, J. P., Incrocci, L., Goldstein, I., & Rosen, R. (eds). Cancer and sexual health. Springer Publishing.
Giorgi, G., & Siccardi, M. (1996). Ultrasonographic observation of a female fetus sexual behavior in utero [Letter to the editors]. American Journal of Obstetrics and Gynecology, 175,(3, Part 1). Google Search Statistics, http://www.internetlivestats.com/google-search-statistics/ Retrieved on May 5, 2017.
Gott, M., & Hinchliff, S. (2003). Barriers to seeking treatment for sexual problems in primary care: A qualitative study with older people. Family Practice, 20, 690-695.
Grumbach, M. M., & Conte, F. A. (1998). Disorders of sex differentiation. In: Wilson, J. D., Foster,
W., Kronenborg, H. M., & Larsen, P. R. (Eds.) Williams Textbook of Endocrinology, Ed:9th. (pps. 1303-1425). Philadelphia: WB Saunders.
Haffner, D. W. (1999). From diapers to dating: A parent\’s guide to raising sexually healthy children. New York, NY: Newmarket Press.
Hall, S. A., Shackelton, R., Rosen, R. C., & Araujo, A. B. (2010). Sexual activity, erectile dysfunction, and incident cardiovascular events. American Journal of Cardiology, 105, 192-197.
Herdt, G. (1996). Third sex, third gender–Beyond sexual dimorphism in culture and history. Cambridge: MIT Press.
Hines, T. (2001). The G-Spot: A modern gynecologic myth. American Journal of Obstetrics and Gynecology, 185, 359–362.
Igbinedion, B. O. E., & Akhigbe, T. O. (2012). The accuracy of 2D ultrasound prenatal sex determination. Nigerian Medical Journal: Journal of the Nigeria Medical Association, 53, 71–75.
Jalili, C. (2016). Here’s what 2,000 men and women fear the most about sex. Elite Daily. http://elitedaily.com/dating/fears-sex-study/ Retrieved on May 10, 2017.
Jannini, E. A., Rubio‐Casillas, A., Whipple, B., Buisson, O., Komisaruk, B. R., & Brody, S. (2012). Female orgasm(s): One, two, several. Journal of Sexual Medicine, 9, 956–965.
Janssen, P. A., Thiessen, P., Klein, M. C., Whitfield, M. F., MacNab, Y. C., & Cullis-Kuhl, S. C. (2007). Standards for the measurement of birth weight, length and head circumference at term in neonates of European, Chinese and South Asian ancestry. Open Medicine, 1, e74–e88.
Kilchevsky, A., Vardi, Y., Lowenstein, L., & Gruenwald, I. (2012). Is the female G-Spot truly a distinct anatomic entity? Sexual Medicine, 9, 719-726.
Killick, S. R., Leary, C., Trussell, J., & Guthrie, K. A. (2011). Sperm content of pre-ejaculatory fluid. Human Fertility, 14, 48-52.
King, B. M. (2015). Human Sexuality Today (7th ed.). Upper Saddle River, NJ: Prentice Hall. Kleinplatz, P. J. (2012). New directions in sex therapy: Innovations and alternatives. New York: Routledge.
Komisaruk, B. R., Wise, N., Frangos, E., Liu, W., Allen, K., & Brody, S. (2011). Women\’s clitoris, vagina and cervix mapped on the sensory cortex: fMRI evidence. Journal of Sexual Medicine, 10, 822–830.
Lucas, D. R., & Fox, J. (2018). The psychology of human sexuality. In R. Biswas-Diener & E. Diener (Eds), Noba textbook series: Psychology. Champaign, IL: DEF publishers. DOI: nobaproject.com).
Lucas, D. R., Roberts, C., Nylander, G., & Higdon, M. (2016). Do Americans know more about sex today than they did 25 years ago? Paper presented at the annual meeting of the Southwestern Psychological Association, Dallas, Texas.
Martinson, F. M. (1994). The sexual life of children. Westport, CT: Bergin & Garvey.
McCabe, M.P., Sharlip, I.D., Lewis, R., Atalla, E., Balon, R., Fisher, A.D., Laumann, E., Lee, S.W., & Segraves, R.T. (2016). Incidence and prevalence of sexual dysfunction in women and men: A consensus statement from the fourth international consultation on sexual medicine 2015. The Journal of Sexual Medicine, 13, 144 -152.
Molina G., Weiser, T.G., Lipsitz, S. R., Esquivel, M. M., Uribe-Leitz, T., Azad, T., Shah, N., Semrau, K., Berry, W. R., Gawande, A. A., & Haynes, A. B. Relationship between Cesarean delivery rate and maternal and neonatal mortality. Journal of the American Medical Association, 314, 2263-2270.
Montague, D. K., Jarow, J. P., Broderick, G. A., et al. (2007). The management of erectile dysfunction: An update. The American Urological Association. Journal of Urology, June.
Moore, K.T., Persaud, T.V.N., & Torchia, M.G. (2016). The developing human: Clinically oriented embryology. Philadelphia, PA: Elsevier, Inc.
Munoz, K., Davtyan, M., & Brown, B. (2014). Revisiting the condom riddle: Solutions and implications. Electronic Journal of Human Sexuality, 17.
Nappi, R. E., & Lachowsky, M. (2009). Menopause and sexuality: Prevalence of symptoms and impact on quality of life. Maturitas, 63, 138-141.
Nguyen, N., & Holodniy, M. (2008). HIV infection in the elderly. Clinical Interventions in Aging, 3, 453–472.
Nummenmaa, L., Suvilehto, J.T., Glerean, E., Santtila, P., & Hietanen, J. K. (2016). Topography of human erogenous zones. Archives of Sexual Behavior, 45, 1207-1216.
Nuno, S. M. (2017). Let’s talk about sex: The importance of open communication about sexuality before and during Relationships. In N. R. Stilton (Ed.), Family Dynamics and Romantic Relationships in a Changing Society (pp. 47-61). IGI Global.
O’Connell, H.E., Sanjeevan, K.V., & Hutson, J. M. (2005). Anatomy of the clitoris. Journal of Urology, 174, 1189-1195.
Odeh M., Ophir E., & Bornstein J. (2008). Hypospadias mimicking female genitalia on early second trimester sonographic examination. Journal of Clinical Ultrasound, 36, 581–583.
Opperman, E., Braun, V., Clarke, V., & Rogers, C. (2014). It feels so good it almost hurts: Young adults experiences of orgasm and sexual pleasure. The Journal of Sex Research, 51, 503-515. Options for Sexual Health. Retrieved on July 2, 2017.
Ortigue, S., Grafton, S. T., & Bianchi-Demicheli, F. (2007). Correlation between insula activation and self-reported quality of orgasm in women. Neuroimage, 37, 551-560.
Owen, D. H., & Katz, D. F. (2005). A review of the physical and chemical properties of human semen and the formulation of a semen simulant. Journal of Andrology, 26, 459–469.
Paik, A., Sanchagrin, K. J., & Heimer, K. (2016). Broken promises: Abstinence pledging and sexual and reproductive health. Journal of Marriage and Family, 78, 546-561.
Parrot, A. (1994). Incest, infertility, infant sexuality. In Bullough, V. & Bullough, B. (Eds.), Human Sexuality Encyclopedia (pp. 289-310). New York, NY: Garland.
Penfield, W., & Boldrey, E. (1937). Somatic motor and sensory representation in the cerebral cortex of man as studied by electrical stimulation. Brain, 60, 389-443.
Porst, H., Montorsi, F., Rosen, R.C., Gaynor, L., Grupe, S., & Alexander, J. (2007). The Premature Ejaculation Prevalence and Attitudes (PEPA) survey: Prevalence, comorbidities, and professional help-seeking. European Urology, 51, 816–824.
Rosen, R. C. (2000). Prevalence and risk factors of sexual dysfunction in men and women. Current Psychiatry Reports, 3,189-195.
Rysavy, M. A., Li, L., Bell, E. F., Das, A., Hintz, S. R., Stoll, B. J., et al. (2015). Between-hospital variation in treatment and outcomes in extremely preterm infants. New England Journal of Medicine, 372, 1801–1811.
Satterwhite, C. L., Torrone, E., Meites, E., Dunne, E. F., Mahajan, R., Ocfemia, M. C., Su, J., Xu, F., & Weinstock, H. (2013). Sexually transmitted infections among U.S. women and men: Prevalence and incidence estimates, 2008. Sexually Transmitted Diseases, 40, 187-193.
Shah, J., & Christopher, N. (2002). Can shoe size predict penile length? British Journal of Urology International, 90, 586–587.
Siminoski, K., & Bain, J. (1993). The relationships among height, penile length, and foot size. Annals of Sex Research, 6, 231-235.
Simon, L., & Daneback, K. (2013). Adolescents’ use of the Internet for sex education: A thematic and critical review of the literature. International Journal of Sexual Health, 25, 305-319.
Stephens-Davidowitz, S. (2015). Searching for sex. Sunday Review, New York Times, https://www.nytimes.com/2015/01/25/opinion/sunday/seth-stephens-davidowitz-search ing-for-sex.html. Retrieved on May 5, 2017.
Swaab, D. F. (2004). Sexual differentiation of the human brain: Relevance for gender identity, transsexualism and sexual orientation. Gynecological Endocrinology, 19, 301-312.
Tachedjiana, G., Aldunatea, M., Bradshawe, C. S., & Coneg, R. A. (in press). The role of lactic acid production by probiotic Lactobacillus species in vaginal health. Research in Microbiology
The Society of Obstetricians and Gynaecologists of Canada. Retrieved on July 2, 2017. Thompson, D. (2016). Anatomy may be key to female orgasm. https://consumer.healthday.com/sexual-health-information-32/orgasm-health-news-510/anatomy-may-be-key-to-female-orgasm-709934.html. Retrieved on March 25, 2017.
Veale, D., Miles, S., Bramley, S., Muir, G. & Hodsoll, J. (2015). Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15,521 men. British Journal of Urology International, 115, 978–986.
Weiss, R. (2014). Baby Boomers Gone Wild! Seniors and STDs. Psychology Today. https://www.psychologytoday.com/blog/love-and-sex-in-the-digital-age/201403/baby-boo mers-gone-wild-seniors-and-stds Retrieved on May 6, 2017.
Wessells, H., Lue, T.F., & McAninch, J. W. (1996). Penile length in the flaccid and erect states: Guidelines for penile augmentation. Journal of Urology, 156, 995-997.
Wickman, D. (2017). Plasticity of the Skene\’s gland in women who report fluid ejaculation with orgasm. The Journal of Sexual Medicine, 14, S67.
Wilcox, A. J., Dunson, D., & Baird, D. D. (2000). The timing of the “fertile window” in the menstrual cycle: Day specific estimates from a prospective study. British Medical Journal, 321, 1259-1262.
Wisniewski, A. B., Migeon, C J., Meyer-Bahlburg, H. F., Gearhart, J. P., Berkovitz, G. D., Brown, T. R., & Money, J. (2000). Complete androgen insensitivity syndrome: Long-term medical, surgical, and psychosexual outcome. Journal of Clinical Endocrinology and Metabolism, 85, 2664–2669.
Wizemann , T. M., & Pardue, M. L. (2001). Sex begins in the womb. In T. M. Wizemann & M. L. Pardue (Eds.), Exploring the Biological Contributions to Human Health: Does Sex Matter? Washington (DC): National Academies Press (US).
World Health Organization (August 2016). Sexually transmitted infections (STIs). http://www.who.int/mediacentre/factsheets/fs110/en/ Retrieved May 6, 2017.