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1 NIH: Instituto Nacional del Corazón lPylS 2014 2 2014 3 2014 129 e521-643 4 2004 137 19-32 5 2000 53 1209-78 6 2010 49 7 2001 71 10-2 8 2002 6 9 2007 10 2019 11 2009 12 2007 531-44 13 2005 78 222-30 14 2007 599-607 15 2007 59 75-83 16 McMaster University, School of Nursing 2014 17 2002 11 ^s1 ^s1 1 S37-44 18 2002 22 912-21 19 2007 100 1584-91 20 2008 86 1791-7 21 2010 37 102532 22 2010 19 644-51 23 2014 312 1323-9