Colin LRobinson, Lauren MBaumann, Robert HGilman, KarinaRomero, Juan ManuelCombe, LiliaCabrera, Nadia NHansel, KathleenBarnes, GuillermoGonzalvez, Robert AWise, Patrick NBreysse, WilliamCheckley
BMJ Open Jan 2012, 2 (1) e000421; DOI: 10.1136/bmjopen-2011-000421