1. Mahosot Hospital, Vientiane, Laos;
2. Université de la Méditerranée, Marseille, France;
3. Mahosot Hospital, Vientiane, Laos;University of Oxford, Oxford, United Kingdom;Mahidol University, Bangkok, Thailand;
4. Mahosot Hospital, Vientiane, Laos;Francophone Institute for Tropical Medicine, Vientiane, Laos
5. Mahosot Hospital, Vientiane, Laos;National University of Laos, Vientiane, Laos;
6. Mahosot Hospital, Vientiane, Laos;University of Oxford, Oxford, United Kingdom;