title: Does variation in the testosterone level of the seminal plasma affect the primary sex ratio?
authors: M E
authors: ME
authors: Bernstein
mesh_terms: D006801:Humans; D008297:Male; D012661:Semen / Q000378:metabolism*; D012744:Sex Ratio; D013315:Stress, Psychological / Q000378:metabolism; D013739:Testosterone / Q000378:metabolism*
chemical_list: D013739:Testosterone