TY  - RPRT
TI  - Unstained negative image patterns. A checkpoint for quality slides.
AU  - E S Head
AU  - E H Tschen
PY  - 1982
DO  - 10.1097/00000372-198204000-00008
UR  - https://pubmed.ncbi.nlm.nih.gov/6179434/
ID  - 6179434
ER  -