TY  - JOUR
A1  - Matsuda, S.
A1  - Kahyo, H. 
T1  - Geographical differences and time trends in the seasonality of birth in Japan
Y1  - 1994
DO  - 10.1093/ije/23.1.107
JF  - Internation Journal of Epidemiology
VL  - 23
IS  - 1

ER  -