The paper reports an estimate of the normal incidence of hypospadias (a male genital malformation observed at birth).
Evidence from:
HEVirtanen et al. APMIS Feb. (2001) Vol. 109, #2 p 96.
Changes in incidence would alert researchers to look for an environmental cause.. In Finland, there has been no change of incidence between 1970 and 1999. This paper provides a useful baseline against which to assess any change.
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