1. Department of Forensic Medicine; Faculty of Medicine Siriraj Hospital; Mahidol University; 2 Wanglang Rd. Bangkok 10700 Thailand
2. Department of Parasitology; Faculty of Medicine Siriraj Hospital; Mahidol University; 2 Wanglang Rd. Bangkok 10700 Thailand
3. Department of Immunology; Faculty of Medicine Siriraj Hospital; Mahidol University; 2 Wanglang Rd. Bangkok 10700 Thailand