title: The human sex ratio. Part 2: A hypothesis and a program of research.
authors.forename: W H
authors.initials: WH
authors.lastname: James
mesh_terms: D000818:Animals; D003075:Coitus; D004971:Estrus; D005260:Female; D005303:Fertility Agents, Male / Q000502:physiology; D007839:Functional Laterality; D012739:Gonadal Steroid Hormones / Q000502:physiology*; D006801:Humans; D007315:Insemination, Artificial; D008228:Lymphoma, Non-Hodgkin; D008297:Male; D011247:Pregnancy; D011248:Pregnancy Complications; D011471:Prostatic Neoplasms; D044469:Racial Groups; D012107:Research Design; D012621:Seasons; D012744:Sex Ratio; D013223:Statistics as Topic; D014427:Twins
chemical_list: D005303:Fertility Agents, Male; D012739:Gonadal Steroid Hormones