The Laboratory Impact of Changing Syphilis Screening From the Rapid-Plasma Reagin to a Treponemal Enzyme Immunoassay: A Case-study From the Greater Toronto Area - Mishra,S; Boily,M-C; Ng,V; Gold,WL; Okura,T; Shaw,M; Mazzulli,T; Fisman,DN (SEXUALLY TRANSMITTED DISEASES, 2011)