In the printed version of this paper, Ref 6 was printed as:
6. Ruckley CV, Cuthberston D, Fenwick N. Day care after operations for hernia or varicose veins: controlled trial. Br J Surg 1978;65:459–99
It should read:
6. Ruckley CV, Cuthbertson C, Fenwick N, Prescott RJ, Garraway WM. Day care after operations for hernia or varicose veins: a controlled trial. Br J Surg 1978;65:456–9