in an evaluation of the limulus assay as a method for detecting endotoxin in urethral exudates , positive results of urethral samples at a 1/200 dilution were obtained from 73 out of 73 patients with culture-positive gonococcal urethritis while negative results were obtained from 26 out of 27 patients with cuture-negative urethral specimens .
C0018078
gonococcal urethritis
C0041967
urethral