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  1. Nelson Vergel

    Causes of male infertility: a 9-year prospective study on 1737 patients with reduced sperm counts

    "The primary cause of infertility was defined for 695 of 1737 patients (~40%). The analyzed causal factors could be divided into absolute (secondary hypogonadism, genetic causes, seminal tract obstruction), severe (oncological diseases, severe sexual dysfunction) and plausible causal factors...
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