PT - JOURNAL ARTICLE AU - Ehrmann, G. AU - Nielsen, H. Aa. TI - Preliminary Agglutination Experiments with <em>Treponema Pallidum.</em> AID - 10.1136/sti.31.4.249 DP - 1955 Dec 01 TA - The British Journal of Venereal Diseases PG - 249--253 VI - 31 IP - 4 4099 - http://sti.bmj.com/content/31/4/249.short 4100 - http://sti.bmj.com/content/31/4/249.full SO - Br J Vener Dis1955 Dec 01; 31