1. Ansink-Schipper MC, Klingeren Bv, Huikeshoven MH, Woudstra RK, Dessens-Kroon M, Wijngaarden LJv (1984) Epidemiology of PPNG infections in the Netherlands: analysis by auxanographie typing and plasmid identification. Br J Vener Dis 60:141–146
2. Austin TW, Lent B, Pattison FLM (1978) Gonorrhea in homosexual men. Can Med Assoc J 119:731–732
3. Backman M, Ruden A-KM, Bygdeman SM, Jonsson A, Ringertz O, Sandstrom EG (1985) Gonococcal serovar distribution in Stockholm with special reference to multiple infections and infected partners. Acta Pathol Microbiol Scand Sect B 93:225–232
4. Bader M, Pedersen AHB, Williams R, Spearman J, Anderson H (1977) Venereal transmission of shigellosis in Seattle-King County. Sex Transm Dis 4:89–91
5. Barnes RC, Daifuku R, Roddy RE, Stamm WE (1986) Urinary tract infection in sexually active homosexual men. Lancet i: 171–173