TY - JOUR T1 - A ban on asbestos must be based on a comparative risk assessment JF - Canadian Medical Association Journal JO - CMAJ SP - 491 LP - 494 VL - 164 IS - 4 AU - Michel Camus Y1 - 2001/02/20 UR - http://www.cmaj.ca/content/164/4/491.abstract ER -