Seasonality of live birth sex ratio in south western Siberia, Russia, 1959-2001.
Melnikov
V N
VN
Grech
V
V
D001723:Birth Rate / Q000639:trends*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D012426:Russia; D012621:Seasons; D012744:Sex Ratio