TY  - RPRT
TI  - Pi M4: an additional Pi M subtype.
AU  - J Constans
AU  - M Viau
AU  - C Gouaillard
PY  - 1980
DO  - 10.1007/bf00329137
UR  - https://pubmed.ncbi.nlm.nih.gov/6969686/
ID  - 6969686
ER  -