JAMA -- Penicillin Treatment of Syphilis: Clearing Away the Shadow on the Land, February 18, 2009, Douglas 301 (7): 769

"In the follow-up to a preliminary report on the use of penicillin for early syphilis, Mahoney and colleagues presented the promising posttreatment observations of the original patients studied for periods in excess of 300 days. They also reported information on the treatment of an additional 100 patients. The accompanying papers in the same issue of JAMA reported on the results obtained by the National Research Council's newly formed Penicillin Panel. Those preliminary results are presented for both early and late syphilis."