[ON THE PROBLEM OF SEASONAL FLUCTUATIONS OF BIRTH WEIGHT].
D001724:Birth Weight; D006801:Humans; D007231:Infant, Newborn; D010507:Periodicity; D012621:Seasons
BIRTH WEIGHT; INFANT, NEWBORN; PERIODICITY; SEASONS
ZUR FRAGE DER JAHRESZEITLICHEN SCHWANKUNGEN DER GEBURTSGEWICHTE NEUGEBORENER.