RT Journal Article SR Electronic T1 Electron microscopy of gonococci in the urethral secretions of patients with gonorrhoea treated with penicillin and erythromycin. JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 179 OP 194 DO 10.1136/sti.50.3.179 VO 50 IS 3 A1 N M Ovcinnikov A1 V V Delektorskij A1 B A Afanas'ev YR 1974 UL http://sti.bmj.com/content/50/3/179.abstract AB