1. Department of Biology, Faculty of Science; Khon Kaen University; Khon Kaen 40002 Thailand
2. Department of Biochemistry, Faculty of Medical Science; Naresuan University; Pitsanulok 65000 Thailand
3. Department of Linguistics, Faculty of Arts; Chulalongkorn University; Bangkok 10330 Thailand
4. Department of Laboratory Medicine & Institute for Human Genetics; University of California San Francisco; San Francisco CA 94143 USA
5. Department of Biology, Faculty of Science; Chiang Mai University; Chiang Mai 50200 Thailand
6. Population Genetics and Genetic Epidemiology; Genome Institute of Singapore; Biopolis 138672 Singapore
7. Department of Microbiology and Parasitology, School of Medical Science; University of Phayao; Phayao 56000 Thailand