腎病變Josef; Selvin, Elizabeth; Stevens, Lesley A.; Manzi, Jane; Kusek, John W.; Eggers, Paul; Van Lente, Frederick; Levey, Andrew S. Prevalence of chronic kidney
菲律宾省份列表system based on US and Spanish models under review (页面存档备份,存于互联网档案馆), Andrew Stevens, Local government in The Philippines, City Mayors Provinces of the Philippines