1. Department
of Medical Epidemiology and Biostatistics, Karolinska Institutet, SE-17177 Stockholm, Sweden
2. Key
Laboratory of Magnetic Resonance in Biological Systems, State Key
Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
Wuhan Centre for Magnetic Resonance, Wuhan Institute of Physics and
Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
3. Department
of Cellular and Molecular Medicine, The Panum Institute, University of Copenhagen, DK-2200, Copenhagen, Denmark
4. Department
of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark
5. Collaborative
Innovation Center for the Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310058, P. R. China