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Mechanisms of initiation and progression of periodontal disease - CLARK - 1993 - Periodontology 2000 - Wiley Online Library
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The Cure for All Diseases: With Many Case Histories: Hulda Regehr Clark: 9781890035013: Amazon.com: Books
Use of a PETN-Ataractic Combination (Cartrax®)* in Coronary Heart Disease and Angina Pectoris - Thomas E. Clark, G.G. Jochem, 1960
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