1. Joint FAO/IAEA Center, 2444 Seibersdorf, Austria
2. Food and Agriculture Organization of the United Nations (FAO), 00153 Rome, Italy
3. Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Padua, Italy
4. Food and Agriculture Organization of the United Nations (FAO), Representation in Vietnam, Hanoi 11112, Vietnam
5. Food and Agriculture Organization of the United Nations (FAO), Regional Office for Asia and the Pacific, Bangkok 10200, Thailand