Article
Hypospadias: risk factor patterns and different phenotypes.
BJU international - 1 Jan 2010
Brouwers Marijn M, van der Zanden Loes F M, de Gier Robert P E, Barten Evert J, Zielhuis Gerhard A, Feitz Wouter F J, Roeleveld Nel
Abstract excerpt
OBJECTIVE: To obtain more insight into the origin of hypospadias by exploring a wide range of potential risk factors in a case-referent study in which a distinction was made between different phenotypes. PATIENTS AND METHODS: Cases and referents were 305 boys with hypospadias and 629 boys with middle ear effusion whose parents completed postal questionnaires. Hypospadias phenotype was classified as distal (195...
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