Looking into PhD programs and running into problems looking for faculty

[rpflash100]

One of the main reasons that I am pursuing a PhD program is to fill a large research gap (Maternal Mortality and Morbidity in MENAP; mostly Farsi-speaking areas though). But, there's a large gap there because not many people are researching it, which makes finding faculty to talk to, and eventually work with, very difficult. I know to look at faculty that are working in global maternal health, or working around the Middle East, but any other ideas? What about faculty from other disciplines - Nursing/Anthropology/International Policy?

Thanks,
RP