RT Journal Article SR Electronic T1 Spontaneous rib fracture: consider other neoplastic causes JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 141 OP 141 DO 10.1503/cmaj.1150079 VO 188 IS 2 A1 Lawrence C. Loh YR 2016 UL http://www.cmaj.ca/content/188/2/141.2.abstract AB