TY - RPRT TI - Human male infertility may be due to a decrease of the protamine P2 content in sperm chromatin. AU - I A Belokopytova AU - E I Kostyleva AU - A N Tomilin AU - V I Vorob'ev PY - 1993 DO - 10.1002/mrd.1080340109 UR - https://pubmed.ncbi.nlm.nih.gov/8418817/ ID - 8418817 ER -