Extending the floor and the ceiling for assessment of physical function. Arthritis & rheumatology (Hoboken, N.J.) Fries, J. F., Lingala, B., Siemons, L., Glas, C. A., Cella, D., Hussain, Y. N., Bruce, B., Krishnan, E. 2014; 66 (5): 1378-1387

View details for DOI 10.1002/art.38342

View details for PubMedID 24782194