RT Journal Article SR Electronic T1 Penicillin in skin and venereal diseases JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 138 OP 138 DO 10.1136/sti.21.3.138 VO 21 IS 3 YR 1945 UL http://sti.bmj.com/content/21/3/138.abstract AB