DOI:
10.1055/s-00000019
Fortschritte der Neurologie · Psychiatrie
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References
Shea BJ, Reeves BC, Wells G. et al.
Amstar 2: A critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both.
BMJ (Clinical Research Ed) 2017;
358: j4008
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