Coital rates, sex-selective infanticide, and sex ratios at birth.
James
W H
WH
Galton Laboratory, University College London.
D003075:Coitus; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007237:Infanticide; D008297:Male; D008849:Micronesia; D012743:Sex Preselection / Q000379:methods*; D012744:Sex Ratio