Monthly and seasonal variations in the frequency of congenital anomalies
Castilla, E E, Orioli, I M, Lugarinho, R, Dutra, G P, Lopez-Camelo, J S, Campana, H E, Spagnolo, A, Mastroiacovo, P
Published in International journal of epidemiology (01.06.1990)
Published in International journal of epidemiology (01.06.1990)
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