PMC:7212965 / 13275-13442 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7212965","sourcedb":"PMC","sourceid":"7212965","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7212965","text":"(RCTs) starts as high-certainty evidence and observational studies start out as low-certainty evidence, but can be rated down for the following reasons: risk of bias, ","tracks":[]}