RT Journal Article SR Electronic T1 T-strains of mycoplasma and nongonococcal urethritis. JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 131 OP 134 DO 10.1136/sti.47.2.131 VO 47 IS 2 A1 Haas, H A1 Dorfman, M L A1 Sacks, T G YR 1971 UL http://sti.bmj.com/content/47/2/131.abstract AB