R M Wilson, P Michel, S Olsen, R W Gibberd, C Vincent, R El-Assady et al
Wilson R M, Michel P, Olsen S, Gibberd R W, Vincent C, El-Assady R et al.
Patient safety in developing countries: retrospective estimation of scale and nature of harm to patients in hospital
BMJ 2012; 344 :e832
doi:10.1136/bmj.e832