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2.
CampbellD. A. (1959) Heart Disease and compensability under workmen's compensation, paper presented at Scientific Session, Annual Meeting California Heart Association, in Long Beach, California, May 23.
3.
BrahdyL. (1961) Disease and Injury, Philadelphia: J. B. Lippincott Company. Chap. 4.
4.
Pacific Employers' Indemnity Company v. IAC, 47 C.A. 2d 497, 118 p. 2d 336, 6 Cal. Comp. Cases 270 (1940).
5.
Marck v. IAC, 29 C.A. 2d 495, 192 p. 2d 1, 13 Cal. Comp. Cases 164 (1938).