Validity and sensitivity of visual analogue scales in young and older healthy subjects
TIPLADY, BRIAN, JACKSON, STEPHEN H. D., MASKREY, VMENNE M., SWIFT, CAMERON G.Volume:
27
Year:
1998
Language:
english
Journal:
Age and Ageing
DOI:
10.1093/ageing/27.1.63
File:
PDF, 257 KB
english, 1998