Quality Assessment of Included Studies
A total of 13 studies were assessed using the NIH Quality Assessment
Tool for Observational Cohort and Cross-Sectional Studies, while 18 were
evaluated using the NIH Quality Assessment Tool for Case Series
(Table S4-S5 ). Overall, 14 studies were rated good [5, 10-12,
14, 16, 17, 19, 24, 26, 28, 29, 32, 34], ten studies were rated fair
[9, 13, 15, 18, 21-23, 25, 27, 31], and the remaining seven were
rated as poor [4, 6-8, 20, 30, 33].