RT Journal Article SR Electronic T1 Painless pink papules with central porcelain-white scars JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1171 OP 1173 DO 10.1503/cmaj.080373 VO 179 IS 11 A1 P. RĂ©gine Mydlarski MD A1 Duane F. Barber MD A1 Lynne H. Robertson MD YR 2008 UL http://www.cmaj.ca/content/179/11/1171.abstract