RT Journal Article SR Electronic T1 Detection of penicillinase producing Neisseria gonorrhoeae strains in Cuba, 1995–8 JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 58 OP 59 DO 10.1136/sti.76.1.58-a VO 76 IS 1 A1 R Llanes A1 J Sosa A1 I Martínez YR 2000 UL http://sti.bmj.com/content/76/1/58.2.abstract AB