By Paul Gilbert
By M.S. Thambirajah
By Gask, Linda
By Donna Williams
By Christopher Cordess
By Michael Carroll and Margaret Tholstrup
By World Health Organization(WHO)
By Papanikitas, Andrew
By Prathap, Sree, Murthy, Mohana
By Bridges, Paul K, Malhi, Gin S
By Lader, Malcolm, Naber, Dieter
By Stahl, Stephen M
By Leonard B
By Kerwin, Robert, McConnell, Denise, McConnell, Harry, Taylor, David
By Sachs, Gary S, Thase, Michael E., Scadding, Glenis K.
By Thomson, Martina
By Mullan, Bob
By Coltart, Nina
By Klauber, Trudy, Rhode, Maria
By Bazire, Stephen
By Van Der Boom, J., Tony, Joseph, Thirumalai, S.
By Happé, Francesca
By Jones, David, Ramchandani, Paul
By Wilkinson, Greg, Moore, Bruce, Moore, Pascale
By Chambers, Ruth, Boath, Elizabeth, Wakley, Gill
By Levi, Michael I.
By Hedges, Diana
By Sartorius, N.
By Sachs, Gary