RT Journal Article SR Electronic T1 Treponematoses. A World Problem JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 174 OP 174 DO 10.1136/sti.30.3.174 VO 30 IS 3 A1 L. W. YR 1954 UL http://sti.bmj.com/content/30/3/174.1.abstract AB