RT Journal Article SR Electronic T1 Necrotic pulmonary nodules in secondary syphilis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E163 OP E166 DO 10.1503/cmaj.091479 VO 183 IS 3 A1 McCready, Janine B. A1 Skrastins, Roland A1 Downey, James F. A1 Powis, Jeff E. YR 2011 UL http://www.cmaj.ca/content/183/3/E163.abstract