Sivaprasad Sobha, Prevost A Toby, Vasconcelos Joana, Riddell Amy, Hykin Philip
National Institute for Health Research, Moorfields Biomedical Research Centre, London EC1V 2PD, UK.
Imperial Clinical Trials Unit, School of Public Health, Imperial College London, London, UK.
Lancet. 2017 Nov 11;390(10108):2141-2142. doi: 10.1016/S0140-6736(17)32422-4. Epub 2017 Nov 9.