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Pruethsan Sutthichaimethee
Institute for Population and Social Research, Mahidol University, Salaya, Phutthamonthon, Nakhonpathom, Phutthamonthon Sai 4 Rd., Salaya, Phutthamonthon, Nakhornpathom,Thailand. 73170, Thailand
Yothin Sawangdee
Institute for Population and Social Research, Mahidol University, Salaya, Phutthamonthon, Nakhonpathom, Phutthamonthon Sai 4 Rd., Salaya, Phutthamonthon, Nakhornpathom,Thailand. 73170, Thailand