Medscape Today	www.medscape.com/medscapetoday
	US National Library of Medicine	www.nlm.nih.gov
	PubMed Journal Search	www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed
	Thai Ministry of Public Health	www.moph.go.th/index.php
	Medical Association of Thailand	www.mat.or.th
	Royal College of Physicians of Thailand	www.rcpt.com