Predictive value of clinical diagnostic codes for the CDC case definition of pelvic inflammatory disease (PID): implications for surveillance.
Ratelle S, Yokoe D, Blejan C, Whelan M, Tang Y, Platt R, Blair R, Tao G, Irwin K. Predictive value of clinical diagnostic codes for the CDC case definition of pelvic inflammatory disease (PID): implications for surveillance. Sex Transm Dis. 2003 Nov; 30(11):866-70.