I am doing some translations for a low-cost health clinic here in the States. It is not a health fair type of thing, i.e. temporary or mobile, but has a set location where doctors provide medical and dental care at a reduced cost. Am I understanding correctly that clínica strictly refers to a private doctors' practice, and not this sort of thing? If so, would centro de salud (a bajo costo)be an accurate term? Thanks for your help.