RT Journal Article SR Electronic T1 Trachoma: leading cause of infectious blindness JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1225 OP 1225 DO 10.1503/cmaj.1040286 VO 170 IS 8 A1 Weir, Erica A1 Haider, Shariq A1 Telio, David YR 2004 UL http://www.cmaj.ca/content/170/8/1225.abstract