Simmons, J.A.*; Richards, S.R.â€
*74 Whitehall Park, London N19 3TN, UK; †47 Westcott Road, London SE17 3QY, UK.
The authors declare no conflict of interest.
For correspondence contact: J.A. Simmons, 74 Whitehall Park, London N19 3TN, UK, or email at [email protected].
(Manuscript accepted 26 July 2011)
doi: 10.1097/HP.0b013e31822fbf2e
