TY - JOUR T1 - Dr. Matteson and Ms. Crowson reply JF - The Journal of Rheumatology JO - J Rheumatol SP - 1252 LP - 1252 DO - 10.3899/jrheum.160149 VL - 43 IS - 6 AU - ERIC L. MATTESON AU - CYNTHIA S. CROWSON Y1 - 2016/06/01 UR - http://www.jrheum.org/content/43/6/1252.3.abstract N2 - To the Editor:We appreciate the insightful comments of Dr. Muller, et al1 that highlight the uses and limitations of hospital data and registry resources. We agree wholeheartedly with Dr. Muller, et al regarding the potential for hospital data, specialist … Address correspondence to Dr. E.L. Matteson, Mayo Clinic and Mayo Foundation, 200 1st St. SW, Rochester, Minnesota 55905, USA. E-mail: matteson.eric{at}mayo.edu ER -