Johnson, A. L.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cambridge, Inst Publ Hlth, Biostat Unit, MRC, Cambridge CB2 1TN, England
MRC, Clin Trials Unit, London, England Queen Mary Univ London, Barts & London Sch Med & Dent, Wolfson Inst Prevent Med, London, England