TY  - RPRT
TI  - Sperm count in ejaculates and after sperm selection with discontinuous percoll gradient centrifugation technique, as a prognostic index of IVF outcome.
AU  - M E Hammadeh
AU  - M Stieber
AU  - G Haidl
AU  - W Schmidt
PY  - 1997
DO  - 10.1007/bf02505320
UR  - https://pubmed.ncbi.nlm.nih.gov/9187464/
ID  - 9187464
ER  -