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Benton decides to blow the whistle on Vucelich's unethical study methods, causing Vucelich to drop him from the study. Susan treats a street couple, one of whom has passed HIV to the other. Doug receives a visit from his estranged father. Carter spreads rumors about an affair between Mark and Susan. Mark buys a motorcycle. Prostitute Loretta has cervical cancer.

Thomas Bellin, Ashlee Lauren, Dean Cameron, Charlotte Ross, Thom Barry, Ira S. Youdovin, Emmy Yu, Mark Pellegrino, James Farentino, Valentino Moreno, Micole Mercurio, Pamela Roberts, Channing Chase, Nathan Bexton, Jake Lloyd