TY  - RPRT
TI  - Worldwide variations in sperm counts.
AU  - H Fisch
AU  - E F Ikeguchi
AU  - E T Goluboff
PY  - 1996
DO  - 10.1016/s0090-4295(96)00301-9
UR  - https://pubmed.ncbi.nlm.nih.gov/8973676/
ID  - 8973676
ER  -