1. Faculty of Medicine, Tropical Diseases Research Centre, Khon Kaen University, Khon Kaen, Thailand;
2. Faculty of Medicine, Department of Medicine and Ambulatory Medicine Research Group, Research Center in Back, Neck Other Joint Pain and Human Performance (BNOJPH), and Sleep Apnea Research Group, Khon Kaen University, Khon Kaen, Thailand;
3. Sección de Microbiologia, Laboratorio de Microbiología y Biología Molecular, Centro Medico Docente la Trinidad, Caracas, Venezuela;
4. Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Mexico
5. Faculty of Medicine, Department of Internal Medicine, Khon Kaen University, Khon Kaen, Thailand;
6. Department of Parasitology, Nara Medical University, Kashihara, Nara, Japan;
7. Cornea Clinic, Ophthalmology Service, Centro Medico Docente la Trinidad, Caracas, Venezuela;