RT Journal Article SR Electronic T1 World must respond to threat of drug-resistant tuberculosis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E37 OP E37 DO 10.1503/cmaj.090695 VO 180 IS 10 A1 Ann Silversides YR 2009 UL http://www.cmaj.ca/content/180/10/E37.abstract