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Chromosomes and human infertility. I. Mitotic and meiotic chromosome studies in 202 consecutive male patients

Mitotic and meiotic chromoqome studies in 202 consecutive infertile male patients are reported. From our results and those available from the literature, the following conclusions can be drawn. 1. Mitotic chromosome analysis definitely must be included in the laboratory investigations of male infertility; meiotic studies are recommended, especially in patients with a normal somatic karyo‐type and unexplained low sperm counts.