Authors
Sudarat Lijutipoom
Lopburi Provincial Public Health Office, Lopburi, Thailand
Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
Somrat Lertmaharit
Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
Piya Hanvoravongchai
Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
Thailand Research Center for Health Services System, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand