SHEE-UAN CHENHONG-NERNG HOChen H.-FKUANG-HAN CHAOLin H.-RHuang S.-CLee T.-YYU-SHIH YANG2020-02-062020-02-0619951058-0468https://scholars.lib.ntu.edu.tw/handle/123456789/454570Comparison between a two-layer discontinuous Percoll gradient and swim-up for sperm preparation on normal and abnormal semen samplesjournal article10.1007/BF022128962-s2.0-0028826380