Research letter: Inability to draw intersecting pentagons as a predictor of unsatisfactory spirometry technique in elderly hospital inpatients.
Authors: Allen, S.C. and Yeung, P.
Journal: Age and Ageing
Volume: 35
Pages: 304-306
ISSN: 0002-0729
DOI: 10.1093/ageing/afj090
http://ageing.oxfordjournals.org/cgi/content/full/35/3/304
Source: Manual
Preferred by: Stephen Allen