Temporal trends in twinning rates in Italy around World War II.
Parazzini
F
F
Benzi
G
G
La Vecchia
C
C
Chatenoud
L
L
Surace
M
M
Rossi
P
P
D001723:Birth Rate / Q000639:trends; D005260:Female; D049673:History, 20th Century; D006801:Humans; D007558:Italy; D011247:Pregnancy; D011272:Pregnancy, Multiple / Q000706:statistics & numerical data*; D014427:Twins / Q000266:history* / Q000706:statistics & numerical data; D014857:Warfare