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About 1 in 6 couples have difficulty conceiving a child

Wed,09 November 2011


New recommendations from an NICHD study question current standards for determining whether a semen sample is normal or abnormal. Under the new recommendations, many men formerly considered fertile may, in fact, have difficulty fathering a child. Conversely, men who fall below the threshold of the current standards, may be capable of fathering a child.

The study, based on the most comprehensive analysis of its kind, was conducted by researchers in the NICHD-sponsored National Cooperative Reproductive Medicine Network, and appears in the November 8 "New England Journal of Medicine&quo



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