Graham Wendy J, Witter Sophie
School of Medicine and Dentistry, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK.
School of Medicine and Dentistry, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK.
Lancet. 2014 Sep 13;384(9947):933-5. doi: 10.1016/S0140-6736(14)61604-4.