Figure 4. . . . . First month of appearance of ciprofloxacin resistance in Neisseria gonorrhoeae isolates from heterosexual men and from men who have sex with men (MSM). ALB, Albuquerque, NM; ATL, Atlanta, GA; BAL, Baltimore, MD; BHM, Birmingham, AL; CHI, Chicago, IL; CLE, Cleveland, OH; LBC, Long Beach, CA; MIA, Miami, FL; MIN, Minneapolis, MN; PHI, Philadelphia, PA; PHX, Phoenix, AZ; POR, Portland, OR.