Authors: CASTILLA EE LOPEZCAMELO JS DUTRA MD QUEENAN JT SIMPSON JL BRUNONI D CARPENA L CEDENO R COSENTINO V GIRALDO A GIUGLIANI R GONZALEZ B LERNER M LOMBARDELLI R MUSSI M NAZER J NEGRI C OSTOS H PESSOTO M RITTLER M RUEDA S SALGADO L WOLFF RL

Citation: Ee. Castilla et al., THE FREQUENCY AND SPECTRUM OF CONGENITAL-ANOMALIES IN NATURAL FAMILY-PLANNING USERS IN SOUTH-AMERICA - NO INCREASE IN A CASE-CONTROL STUDY, Advances in contraception, 13(4), 1997, pp. 395-404