David C. Schaefer is an author at Johns Hopkins University specializing in health sciences, medicine, and gastrointestinal pathology.
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HealthMedicineSurgeryGastroenterologyExercise PhysiologyGastrointestinal PathologyAgingUrologyExerciseDiagnosis
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1978–2004
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David C. Schaefer, Lawrence J. Cheskin · PubMed · 1998 · 82 citations
Visual Inspection, Urology, Functional Gastrointestinal Disorder +9
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