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Professional
Consumer
Merck Manual
Professional Version
MEDICAL TOPICS
RESOURCES
DRUG INFO
COMMENTARY
PROCEDURES
QUIZZES
ABOUT US
MEDICAL TOPICS
RESOURCES
Professional
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Special Subjects
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Nonspecific Symptoms
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Nonspecific Symptoms
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Fatigue
Reference
Etiology
Evaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Treatment
Geriatrics Essentials
Key Points
Involuntary Weight Loss
Pathophysiology
Etiology
Evaluation
History
Physical examination
Red flags
Interpretation of findings
Testing
Treatment
Geriatrics Essentials
Key Points