TY  - RPRT
TI  - Systemic sclerosis (scleroderma). Introduction.
AU  - C M Black
PY  - 1991
DO  - 10.1136/ard.50.suppl_4.837
UR  - https://pubmed.ncbi.nlm.nih.gov/1750794/
ID  - 1750794
ER  -