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Montri Pongkumpai
Division of Infectious Diseases, Department of Medicine, Faculty of Medicine, Chulalongkorn University,Bangkok, Thailand
Suwanna Trakulsomboon
Division of Infectious Disease and Tropical Medicine, Department of Medicine, Faculty of Medicine, Siriraj Hospital, Mahidol University,Bangkok, Thailand
Chusana Suankratay
Division of Infectious Diseases, Department of Medicine, Faculty of Medicine, Chulalongkorn University,Bangkok, Thailand