TY  - RPRT
TI  - Second class distinction.
AU  - J M Baisch
AU  - J D Capra
PY  - 1991
DO  - 10.1016/0960-9822(91)90201-7
UR  - https://pubmed.ncbi.nlm.nih.gov/15336087/
ID  - 15336087
ER  -