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Certification in occupational health: philosophy, implication, and mechanism. 1
Certification in occupational health: philosophy, implication, and mechanism. 2
Certification in occupational health: philosophy, implication, and mechanism. 3
Certification in occupctional health: philosophy, implication, and mechanism. 4
Chronic disease in former college students. 3. Precursors of suicide in early and middle life
Yale studies in ambulatory medical care. v. determinants of use of hospital emergency services