作者单位:
St Marks Hosp, IBD Unit, London, England
[1]
Univ Birmingham, Univ Hosp Birmingham NHS Fdn Trust, Birmingham, W Midlands, England
[2]
Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[3]
PHE Publ Hlth Lab Birmingham, Birmingham, W Midlands, England
[4]
Royal Devon & Exeter NHS Fdn Trust, Exeter, Devon, England
[5]
Imperial Coll London, London, England
[6]
发布时间
2017-11-22