[1] INEI ANLIS Dr Carlos G Malbran, Ctr Nacl Referencia Enfermedades Transmis Sexual, Buenos Aires, DF, Argentina
[2] Inst Salud Carlos III, Ctr Nacl Microbiol, Reference Lab Neisseria, Madrid, Spain
[3] Hosp Aleman, Microbiol Lab, Buenos Aires, DF, Argentina
[4] Hosp Muniz, Microbiol Lab, Buenos Aires, DF, Argentina