We did a study in which we looked at women who had recognized PID, who were symptomatic, and unrecognized PID, women who either had or had partners with Gonorrhea or Chlamydia but didn’t come in complaining of symptoms but had an endometrial biopsy done anyway. We compared endometritis in the two groups. What we argued was that to the degree that hormonal contraception was more likely in the unrecognized PID group, what might be going was that for whatever reason the hormonal contraception actually reduced the symptomotology, or the clinical recognition, and therefore we could then understand the data that’s out there in the literature in its entirety.