title: Secondary sex ratios and patterns of sexual behavior: a test of James' proposition.
authors.affiliation: Population Studies and Training Center, Brown University, Providence, Rhode Island.
authors.forename: A A
authors.initials: AA
authors.lastname: Brewis
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008849:Micronesia; D008954:Models, Biological; D008960:Models, Psychological; D012744:Sex Ratio; D012725:Sexual Behavior