Mordin M, Parrish W, Masaquel C, Bisson B, Copley-Merriman K. Intra-articular hyaluronic acid for osteoarthritis of the knee in the United States: a systematic review of economic evaluations. Clin Med Insights Arthritis Musculoskelet Disord. 2021 Nov 19;14:1-13. doi: 10.1177/11795441211047284
Ritter A, Mellor R, Chalmers J, Sunderland M, Lancaster K. Key considerations in planning for substance use treatment: estimating treatment need and demand. J Stud Alcohol Suppl. 2019 Jan;Supp1 18:22-30. doi: 10.15288/jsads.2019.s18.22
Bonfill X, Rivero E, Moreno C, Rué M. Changes in cancer mortality in Catalonia and Spain (1975-77 and 1987-89). A comparison with other European countries. Eur J Cancer Prev. 1995 Dec;4(6):453-8.