Tangcharoensathien Viroj, Boonperm Jirawan, Jongudomsuk Pongpisut
International Health Policy Program, Ministry of Public Health, 376 Mooban Panya, Patanakan Road, Bangkok, 10250, Thailand.
Bull World Health Organ. 2010 Jun;88(6):468-9. doi: 10.2471/BLT.10.079129.