00320nas a2200121 4500000000100000008004100001100001000042700001200052700001600064245010100080300001000181490000700191 2003 d1 aLo S.1 aChiu A.1 aAu-Yeung S.00aA comparison of four functional tests in discriminating fallers from non-fallers in older people a45-500 v25