TY  - RPRT
TI  - Methods for quantifying mammalian spermatogenesis: a review.
AU  - W E Berndtson
PY  - 1977
DO  - 10.2527/jas1977.445818x
UR  - https://pubmed.ncbi.nlm.nih.gov/324963/
ID  - 324963
ER  -