1. Craig DB (1981) Postoperative recovery of pulmonary function. Anesth Anaig 60: 46–52
2. Spence AA (1980) Postoperative pulmonary complications in general anesthesia. In: Gray TC, Nunn JF, Utting JE (eds), vol 1. Butterworth, London, pp 591–608
3. Bonica JJ (1983) Current status of postoperative pain therapy. In: Yokota T, Dubner R (eds) Current topics in pain research and therapy. Exerpta Medica, Tokio, pp 169–189
4. Modig J (1982) Thromembolism and blood loss: Continuous epidural vs. general anesthesia with v-controlled ventilation. Reg Anesth 7: S84 - S88
5. Cohen FL (1980) Postsurgical pain relief. Patients status and nurses’ medication. Pain 9: 265–274