Employing CBPR to investigate function, utility, and longevity of household filters to improve potable water quality for indigenous peoples at Lake Atitlán, Guatemala: a pilot study with San Pedro de La Laguna

运用社区参与式研究方法，调查家用过滤器的功能、效用和使用寿命，以改善危地马拉阿蒂特兰湖地区土著居民的饮用水质量：与圣佩德罗德拉拉古纳合作开展的试点研究