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2. Bolam v Friern Hospital Management Committee. 1 WLR 582. 1957.
3. Bolitho v City and Hackney Health Authority. AC 232. 1998
4. Canterbury v Spence. 464 F. 2d. 772. 1972.
5. Castell v De Greef. (4) SA 408 (C). 1994.