By Robert E. J. Ryder, M. Afzal Mir, E. Anne Freeman
By Banerjee, Dev, Ryder, Robert E. J., Mir, M. Afzal, Freeman, E. Anne, Dev Banerjee, Robert E. J. Ryder, M. Afzal Mir, E. Anne Freeman
By Dr K K Ray (MB ChB BSc UK), Robert E. J. Ryder, Dr Rm Wellings (MB ChB FRCS FRCR UK)