RT Journal Article SR Electronic T1 Prostaglandin E1 therapy for digital ulcers in scleroderma JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 42 OP 45 VO 126 IS 1 A1 M. Baron A1 G. Skrinskas A1 M. B. Urowitz A1 P. N. Madras YR 1982 UL http://www.cmaj.ca/content/126/1/42.abstract