[1] Mae Fah Luang Univ, Sch Nursing, Mueang Chiang Rai, Chiang Rai Prov, Thailand
[2] Mae Fah Luang Univ, Ctr Excellence Hill Tribe Hlth Res & Training, Mueang Chiang Rai, Thailand
[3] Thaksin Univ, Nursing Fac, Phatthalung, Thailand
[4] Mae Fah Luang Univ, Sch Hlth Sci, Mueang Chiang Rai, Thailand
[5] Minist Publ Hlth, Praboromarajchanok Inst, Phrapokklao Nursing Coll, Fac Nursing, Mueang Chanthaburi, Thailand
[6] Rajabhat Univ, Nursing Fac, Surat Thani, Thailand