Functional capacity using sit-to-stand tests in people with chronic obstructive pulmonary disease and its relationship with disease severity¿a cross-sectional study with matched controls Ana Machado; Cíntia Dias; Patrícia Rebelo; Sara Souto-Miranda; Maria Aurora Mendes; Diva Ferreira; Vitória Martins; Paula Simão; Chris Burtin; Alda Marques;

Developing and assessing the measurement properties of an instrument to assess the impact of musculoskeletal pain in children aged 9 to 12¿the pediatric musculoskeletal pain impact summary score Priscilla Viana da Silva; Steven J. Kamper; Alix Hall; Tie P. Yamato; Lise Hestbaek; Henrik H. Lauridsen; Christopher M. Williams;

Subjective Happiness Scale: Measurement properties of the online and paper-pen administrations in Nepali adults with musculoskeletal pain Ritu Basnet; Anupa Pathak; Mark P. Jensen; Narendra Singh Thagunna; James H. McAuley; Saurab Sharma;