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)