1. GSK Vaccines Institute for Global Health
2. Department of Diarrheal Disease Research, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States
3. GSK, Rixensart, Belgium
4. GSK Vaccines Institute for Global Health, Siena, Italy;
5. University of Cincinnati College of Medicine
6. US Parmacopoeia
7. GSK Vaccines Institute for Global Health, Siena, Italy