[1] Columbia Univ, Vagelos Coll Phys & Surg, Dept Med, Internal Med Residency Program, New York, NY USA
[2] Columbia Univ, Vagelos Coll Phys & Surg, Dept Med, Med,Div Pulm Allergy & Crit Care Med, New York, NY USA
[3] Columbia Univ, Vagelos Coll Phys & Surg, Internal Med Residency Program, New York, NY USA
[4] Columbia Univ, Vagelos Coll Phys & Surg, Div Gen Internal Med, Med, New York, NY USA
[5] Columbia Univ, Vagelos Coll Phys & Surg, Dept Med, Educ, New York, NY USA
[6] Columbia Univ, Vagelos Coll Phys & Surg, Dept Med, Med,Div Rheumatol, New York, NY USA