A Joint International Study on the Epidemiology of Hypospadias.Published in:Acta Paediatrica, 1986, v. 75, n. s324, p. 1, doi. 10.1111/j.1651-2227.1986.tb14935.xBy:KALLGN, BENGT;BERTOLLINI, ROBERTO;CASTILLA, EDUARDO;CZEIZEL, ANDREW;KNUDSEN, LISBETH B.;MARTINEZ-FRIAS, MARIA LUISA;MASTROIACOVO, PIERPAOLO;MUTCHINICK, OSVALDOPublication type:Article