TY  - RPRT
TI  - Histological versus stereological methods applied at spermatogonia during normal human development.
AU  - D Cortes
PY  - 1990
DO  - 10.3109/00365599009180352
UR  - https://pubmed.ncbi.nlm.nih.gov/2320969/
ID  - 2320969
ER  -