RT Journal Article SR Electronic T1 Active pulmonary tuberculosis in a large general hospital JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 30 OP 33 VO 98 IS 1 A1 P. Kecharananta A1 C. R. Woolf YR 1968 UL http://www.cmaj.ca/content/98/1/30.abstract