TY - RPRT TI - A quality control system for the optimized sperm penetration assay. AU - A Johnson AU - B Bassham AU - L I Lipshultz AU - D J Lamb PY - 1995 DO - 10.1016/s0015-0282(16)57862-5 UR - https://pubmed.ncbi.nlm.nih.gov/7672158/ ID - 7672158 ER -