Sun QY. Cellular and molecular mechanisms leading to cortical reaction and polyspermy block in mammalian eggs. Microsc Res Tech 2003;61:342–348.
34.
Gracia CR, Sammel MD, Coutifaris C, et al. Occupational exposures and male infertility. Am J Epidemiol 2005;162:729–733.
35.
Chavarro JE, Toth TL, Sadio SM, et al. Soy food and isoﬂavone intake in relation to semen quality parameters among men from an infertility clinic. Hum Reprod 2008;23:2584–2590.
36.
Muthusami KR, Chinnaswamy P. Effect of chronic alcoholism on male fertility hormones and semen quality. Fertil Steril 2005;84:919– 924.
37.
Gaur DS, Talekar MS, Pathak VP. Alcohol intake and cigarette smoking: impact of two major lifestyle factors on male fertility. Indian J Pathol Microbiol 2010;53:35–40.
38.
Kunzle R, Mueller MD, Hanggi W, et al. Semen quality of male smokers and nonsmokers in infertile couples. Fertil Steril 2003;79:287–291.
39.
Said TM, Ranga G, Agarwal A. Relationship between semen quality and tobacco chewing in men undergoing infertility evaluation. Fertil Steril 2005;84:649–653.
40.
Whan LB, West MC, McClure N, et al. Effects of delta-9tetrahydrocannabinol, the primary psychoactive cannabinoid in marijuana, on human sperm function in vitro. Fertil Steril 2006;85:653– 660.
41.
Bracken MB, Eskenazi B, Sachse K, et al. Association of cocaine use with sperm concentration, motility, and morphology. Fertil Steril 1990;53:315–322.
42.
Yelian FD, Sacco AG, Ginsburg KA, et al. The effects of in vitro cocaine exposure on human sperm motility, intracellular calcium, and oocyte penetration. Fertil Steril 1994;61:915–921.
43.
World Health Organization. Laboratory manual for the examination of human semen and sperm–cervical mucus interaction. Cambridge, UK: Cambridge University Press, 1992.
44.
Male Infertility Best Practice Policy Committee of the American Urological Association; Practice Committee of the American Society for Reproductive Medicine. Report on optimal evaluation of the infertile male. Fertil Steril 2006;86:S202–209.
45.
Levitas E, Lunenfeld E, Weiss N, et al. Relationship between the duration of sexual abstinence and semen quality: analysis of 9,489 semen samples. Fertil Steril 2005;83:1680–1686.
46.
Marshburn PB, Alanis M, Matthews ML, et al. A short period of ejaculatory abstinence before intrauterine insemination is associated with higher pregnancy rates. Fertil Steril 2010;93:286–288.
47.
Bhasin S. Approach to the infertile man. J Clin Endocrinol Metab 2007;92:1995–2004.
48.