Causes of Nail Clubbing - Mnemonic 
Cyanotic Heart Disease, Cystic Fibrosis
Lung Cancer, Lung abscess 
Ulcerative Colitis 
Bronchiectasis 
Benign Mesothelioma
Infective Endocarditis, Idiopathic Pulmonary 
Neurogenic Tumors
Gastrointestinal Disease

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