considering the clinical fertility status of the couples , sperm agglutinins in high titres ( greater than or equal to 10 ) against the equatorial segment and the main tail piece of the spermatozoa were found significantly more often among men from couples with unexplained infertility than among clinically normal men from couples where the findings in the women could be assumed to cause infertility .
C0037868
sperm
C0037851
the