* Acoustic radiation force impulse elastography and transient elastography
* Liver tissue (frozen tissue, paraffin block)
* Whole blood, Serum
* Fat amount ratio CT (Visceral adipose tissue, Subcutaneous adipose tissue amount)
* Body composition analyzer (InBody scale):Total fat/muscle mass and appendicular skeletal muscle mass
* Pulmonary function test with post-bronchodilator response and DLCo
* EKG, EchoCG, Heart CT (Coronary calcium score), and Pusle wave velocity (AI index, arterial stiffness)
* Brain MRI or CT
* Upper esophagogastroscopy and colonoscopy
* Berlin score questionnaire and Polysomnography
