Comparative literatureMartial artsPublic healthSanitationBaroque literatureCities and townsKnowledge, Sociology ofVargas Machuca, Bernardo de, 1557-1622Sigüenza y Góngora, Carlos de, 1645-1700
HistoryPublic healthHealth insuranceHealth insurance--Government policyNational health insuranceMedicareMedicaidConsumer-driven health careNixon, Richard M. (Richard Milhous), 1913-1994
Environmental healthEpidemiologyPublic healthDrinking water--Arsenic contentArsenic--Health aspectsUnited States. Environmental Protection Agency. Office of Water Regulations and Standards