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Leonardo, Lydia R. and Crisostomo, Bobby A. and Solon, Juan Antonio A. and Rivera, Pilarita T. and Marcelo, Alvin B. and Villasper, Jonathan M. (2007) Geographical information systems in health research and services delivery in the Philippines. Geospatial health , 1 (2). pp. 147-155. ISSN 1970-7096