Rāingān wičhai kānphrǣrabāt khō̜ng rōk ʻēt nai khēt phư̄nthī Pāng Pō̜p, ʻAmphœ̄ Chīang Kham, Čhangwat Phayao
Niphatthawēt Sư̄psǣng.
1996
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Aids (Disease)
Study on AIDS disease spreading in Phayao Province, Northern Thailand.