TY - RPRT TI - Ultrastructural sperm tail defects associated with sperm immotility. AU - R A Williamson AU - J K Koehler AU - W D Smith AU - M A Stenchever PY - 1984 DO - 10.1016/s0015-0282(16)47549-7 UR - https://pubmed.ncbi.nlm.nih.gov/6692950/ ID - 6692950 ER -