1. Cimmino MA, Zaccaria A. Epidemiology of polymyalgia rheumatica. Clin Exp Rheumatol. 2000. 18:S9–S11.
2. Chuang TY, Hunder GG, Ilstrup DM, Kurland LT. Polymyalgia rheumatica: a 10-year epidemiologic and clinical study. Ann Intern Med. 1982. 97:672–680.
3. Michet CJ, Matteson EL. Polymyalgia rheumatica. BMJ. 2008. 336:765–769.
4. Smeeth L, Cook C, Hall AJ. Incidence of diagnosed polymyalgia rheumatica and temporal arteritis in the United Kingdom, 1990-2001. Ann Rheum Dis. 2006. 65:1093–1098.
5. Salvarani C, Cantini F, Hunder GG. Polymyalgia rheumatica and giant-cell arteritis. Lancet. 2008. 372:234–245.
6. Bird HA, Esselinckx W, Dixon AS, Mowat AG, Wood PH. An evaluation of criteria for polymyalgia rheumatica. Ann Rheum Dis. 1979. 38:434–439.
7. Healey LA. Long-term follow-up of polymyalgia rheumatica: evidence for synovitis. Semin Arthritis Rheum. 1984. 13:322–328.
8. Salvarani C, Cantini F, Boiardi L, Hunder GG. Polymyalgia rheumatica. Best Pract Res Clin Rheumatol. 2004. 18:705–722.
9. van der Veen MJ, Dinant HJ, van Booma-Frankfort C, van Albada-Kuipers GA, Bijlsma JW. Can methotrexate be used as a steroid sparing agent in the treatment of polymyalgia rheumatica and giant cell arteritis? Ann Rheum Dis. 1996. 55:218–223.
10. Ferraccioli G, Salaffi F, De Vita S, Casatta L, Bartoli E. Methotrexate in polymyalgia rheumatica: preliminary results of an open, randomized study. J Rheumatol. 1996. 23:624–628.
11. Caporali R, Cimmino MA, Ferraccioli G, Gerli R, Klersy C, Salvarani C, Montecucco C. Systemic Vasculitis Study Group of the Italian Society for Rheumatology. Prednisone plus methotrexate for polymyalgia rheumatica: a randomized, double-blind, placebo-controlled trial. Ann Intern Med. 2004. 141:493–500.
12. Salvarani C, Cantini F, Niccoli L, Catanoso MG, Macchioni P, Pulsatelli L, Padula A, Olivieri I, Boiardi L. Treatment of refractory polymyalgia rheumatica with infliximab: a pilot study. J Rheumatol. 2003. 30:760–763.
13. Migliore A, Massafra U, Carloni E, Padalino C, Martin S, Lasaracina F, Dibiase N, Alimonti A, Granata M. TNF-alpha blockade induce clinical remission in patients affected by polymyalgia rheumatica associated to diabetes mellitus and/or osteoporosis: a seven cases report. Eur Rev Med Pharmacol Sci. 2005. 9:373–378.
14. Catanoso MG, Macchioni P, Boiardi L, Pipitone N, Salvarani C. Treatment of refractory polymyalgia rheumatica with etanercept: an open pilot study. Arthritis Rheum. 2007. 57:1514–1519.
15. Mori S, Koga Y, Ito K. Clinical characteristics of polymyalgia rheumatica in Japanese patients: evidence of synovitis and extracapsular inflammatory changes by fat suppression magnetic resonance imaging. Mod Rheumatol. 2007. 17:369–375.
16. Mackie SL, Hensor EM, Haugeberg G, Bhakta B, Pease CT. Can the prognosis of polymyalgia rheumatica be predicted at disease onset? Results from a 5-year prospective study. Rheumatology (Oxford). 2010. 49:716–722.
17. Li WL, Lo Y, Leung MH, Wong WS, Mok MY. The clinical course of polymyalgia rheumatica in Chinese. Clin Rheumatol. 2010. 29:199–203.
18. Pease CT, Haugeberg G, Montague B, Hensor EM, Bhakta BB, Thomson W, Ollier WE, Morgan AW. Polymyalgia rheumatica can be distinguished from late onset rheumatoid arthritis at baseline: results of a 5-yr prospective study. Rheumatology (Oxford). 2009. 48:123–127.
19. Salvarani C, Cantini F, Macchioni P, Olivieri I, Niccoli L, Padula A, Boiardi L. Distal musculoskeletal manifestations in polymyalgia rheumatica: a prospective followup study. Arthritis Rheum. 1998. 41:1221–1226.
20. Hutchings A, Hollywood J, Lamping DL, Pease CT, Chakravarty K, Silverman B, Choy EH, Scott DG, Hazleman BL, Bourke B, Gendi N, Dasgupta B. Clinical outcomes, quality of life, and diagnostic uncertainty in the first year of polymyalgia rheumatica. Arthritis Rheum. 2007. 57:803–809.
21. Bird HA, Leeb BF, Montecucco CM, Misiuniene N, Nesher G, Pai S, Pease C, Rovensky J, Rozman B. A comparison of the sensitivity of diagnostic criteria for polymyalgia rheumatica. Ann Rheum Dis. 2005. 64:626–629.
22. Kobayashi S, Yano T, Matsumoto Y, Numano F, Nobuyuki N, Yasuda K, Yutani C, Nakayama T, Tamakoshi A, Kawamura T, Ohno Y, Inaba Y, Hashimoto H. Clinical and epidemiologic analysis of giant cell (temporal) arteritis from a nationwide survey in 1998 in Japan: the first gonvernment-supported nationwide survey. Arthritis Rheum. 2003. 49:594–598.
23. Mertens JC, Willemsen G, Van Saase JL, Bolk JH, Dijkmans BA. Polymyalgia rheumatica and temporal arteritis: a retrospective study of 111 patients. Clin Rheumatol. 1995. 14:650–655.
24. Cimmino MA, Caporali R, Montecucco CM, Rovida S, Baratelli E, Broggini M. A seasonal pattern in the onset of polymyalgia rheumatica. Ann Rheum Dis. 1990. 49:521–523.
25. Petursdottir V, Johansson H, Nordborg E, Nordborg C. The epidemiology of biopsy-positive giant cell arteritis: special reference to cyclic fluctuations. Rheumatology (Oxford). 1999. 38:1208–1212.
26. Peris P. Polymyalgia rheumatica is not seasonal in pattern and is unrelated to parvovirus b19 infection. J Rheumatol. 2003. 30:2624–2626.
27. Narváez J, Clavaguera MT, Nolla-Solé JM, Valverde-Garcia J, Roig-Escofet D. Lack of association between infection and onset of polymyalgia rheumatica. J Rheumatol. 2000. 27:953–957.
28. Kremers HM, Reinalda MS, Crowson CS, Zinsmeister AR, Hunder GG, Gabriel SE. Relapse in a population based cohort of patients with polymyalgia rheumatica. J Rheumatol. 2005. 32:65–73.
29. Salvarani C, Macchioni P, Manzini C, Paolazzi G, Trotta A, Manganelli P, Cimmino M, Gerli R, Catanoso MG, Boiardi L, Cantini F, Klersy C, Hunder GG. Infliximab plus prednisone or placebo plus prednisone for the initial treatment of polymyalgia rheumatica: a randomized trial. Ann Intern Med. 2007. 146:631–639.
30. Salvarani C, Cantini F, Niccoli L, Macchioni P, Consonni D, Bajocchi G, Vinceti M, Catanoso MG, Pulsatelli L, Meliconi R, Boiardi L. Acute-phase reactants and the risk of relapse/recurrence in polymyalgia rheumatica: a prospective followup study. Arthritis Rheum. 2005. 53:33–38.