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Title
Hypospadias trends in two US surveillance systems.
Authors
Paulozzi, L J; Erickson, J D; Jackson, R J
Abstract
Hypospadias is a common congenital anomaly, the cause of which is unknown. Unexplained increases in the rates of hypospadias occurred in five European countries in the 1970s and 1980s. We examined data from two birth defects surveillance systems in the United States for evidence of similar trends.