1817-5996 1817-5996 S1817-59962020000300009 Ecuador 00 12 2020 00 12 2020 22 3

1 2003 21 ^s30 ^s30 30 S191-4 2 American College of Rheumatology Subcommittee on Rheumatoid Arthritis Guidelines 2002 46 328-46 3 2000 3 47-56 4 2008 67 ^sII ^sII II 187 5 1998 103 35-42 6 2003 62 681-2 7 2008 67 1360-4 8 Epidemiology Study Group of the Italian Society of Rheumatology 2009 27 552-9 9 2010 49 683-90 10 2003 21 5 Suppl 31 5 Suppl 31 S54-8 11 1997 24 1436-42 12 2008 47 392-8 13 2002 46 357-65 14 2005 294 3073-4 15 2007 6 ^s1 ^s1 1 16 2005 35 185-96 17 2010 69 964-75 18 2000 3 47-56 19 1999 26 ^s57 ^s57 57 22-8 20 2004 364 263-9 21 1997 83 103-16 22 American College of Rheumatology 2008 59 762-84 23 American College of Rheumatology, Ad Hoc Committee on Clinical Guidelines 1996 39 713-22 24 2008 372 375-82 25 2006 54 26-37 26 2005 52 27-35 27 2011 13 ^s1 ^s1 1