Folic acid

Literature search and study selection process After conducting an electronic search, 1634 records were identified, 916 of which were kept after removing duplicates. After assessing the titles and abstracts, a further 891 records were excluded, leaving 25 articles to be retrieved for full-text evaluation. In the end, 16 RCTs [27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42] fulfilled the inclusion criteria. Figure 1 … Read more