S G Chiverton, J A Inglis, C Hudd, M J Kellett, R C Russell, J E Wickham et al
Chiverton S G, Inglis J A, Hudd C, Kellett M J, Russell R C, Wickham J E et al.
Percutaneous cholecystolithotomy: the first 60 patients.
British Medical Journal 1990; 300 :1310
doi:10.1136/bmj.300.6735.1310