1. BIER, A. (1980) Archiv fur klinische Chirurgie 86, 1,007. PRENTICE, D. E., WYN-JONES, G., JONES, R S. and JAGGER, D. W. (1974)
2. STEINHAUS, J. E. (1969) Acta Anaesthesiologica Scandanivica Supplement 36, 71.
3. Infiltrate site and thickness of intercostal wall with local anaesthetic solution. About 5 ml should suffice