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Frey, Keith A.. "Blackwell’s Primary Care Essentials: The Complete Guide. Fourth edition. And Guidelines for Electronic. By Daniel K. Onion. 882 pp. Malden, Mass, Blackwell, 2003. $42.95 (paper). ISBN 0-632-04633–3." The Journal of the American Board of Family Practice 16.1 (2003): 91. Web. 17 April. 2025.

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