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. 2020 Mar 23;10(3):e034568. doi: 10.1136/bmjopen-2019-034568

Table 4.

Presence of bias

Items Yes, n (%) No, n (%) Unclear, n (%)
Is there a time interval between reference standard ML test? 23 (82) 1 (4) 4 (14)
Does the test population correspond to the population/setting in which the diagnosis test will be applied? 5 (18) 8 (29) 15 (54)