Three-dimensional plot of the median bacterial, leukocyte, and erythrocyte counts per μl in urine estimated from flow cytometry analysis for different uropathogens isolated from patients with suspected urinary tract infection. Star, culture-negative specimens. y axis: RBC, red blood cell counts/μl (erythrocytes). x axis: bacterial counts/μl. z axis: WBC, white blood cell counts/μl (leukocytes). α-strept, alpha-hemolytic streptococci.