Acknowledgements
The authors would like to thank: the stroke unit nurses for
collecting the daily urine samples; research nurses at Wellcome
Trust Clinical Research Facility for storing and testing
the urine samples; P Taylor (stroke unit charge nurse) for
providing support with identification of eligible subjects; V
Hamilton (dietician) and G Hill (Lecturer, Edinburgh Napier
University) for providing advice on ethics, study design and
methods of data collection.