0120-3347 0120-3347 S0120-33472019000100001 10.1097/cj9.0000000000000094 United States 00 03 2019 00 03 2019 47 1 1 4 1 1997 78 606-17 2 1999 86 227-30 3 1995 161 283-8 4 2006 25 224-44 5 2009 13 2321-9 6 2016 40 2441-50 7 2018 46 196-201 8 2018 46 187-95