Alvarez-Martin C, Ribera A, Marsal JR, Ariza-Sole A, Perez-Hoyos S, Oristrell G, Soriano-Colome T, Romaguera R, Pijoan JI, Lidon RM, Mauri J, Ferreira-Gonzalez I. Dynamics of emergency cardiovascular hospital admissions and in-hospital mortality during the COVID-19 pandemic: time series analysis and impact of socioeconomic factors. Front. Cardiovasc. Med. 2022 Apr 26. doi: 10.3389/fcvm.2022.827212
McKenna SP, Doward LC. How should we measure quality of life in ankylosing spondylitis? Rheumatol Pract. 2008;6(2):12-4.
Espaulella J, Guyer H, Diaz-Escriu F, Mellado-Navas JA, Castells M, Pladevall-Vila M. Nutritional supplementation of elderly hip fracture patients. A randomized, double-blind, placebo-controlled trial. Age Ageing. 2000 Sep;29(5):425-31.