TY - JOUR T1 - When is pus not pus? JF - Canadian Medical Association Journal JO - CMAJ SP - E414 LP - E414 DO - 10.1503/cmaj.732795 VL - 189 IS - 10 AU - Tony Carr Y1 - 2017/03/13 UR - http://www.cmaj.ca/content/189/10/E414.abstract N2 - ER -