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New England Journal of Medicine 2014; 371:1765-1767
Clinics in Geriatric Medicine, May 1995;11(2):231-238.
J Toxicol Environ Health, 2002;65(Part A):649-654
Cleveland Clinic Journal of Medicine, May-June, 1995;62(3):184-192.
New Zealand Medical Journal May 24, 1995, p. 318