Hardage Jason, Zeigler Stacey, Blackwood Jennifer, Gravano Tamara, Hartley Greg, Heitzman Jill, Libera Joe, Miller Ken
Texas State University-San Marcos, San Marcos, Texas, USA.
J Geriatr Phys Ther. 2012 Apr-Jun;35(2):82-5. doi: 10.1519/JPT.0b013e3182476883.