TY  - RPRT
TI  - Amplitude-contrast microscopy in histochemistry.
AU  - G B David
AU  - B S Williamson
PY  - 1971
DO  - 10.1007/bf00263363
UR  - https://pubmed.ncbi.nlm.nih.gov/5565032/
ID  - 5565032
ER  -