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Open-Access Journal
Frontier
Review
Minireviews
Case Control Study
Retrospective Cohort Study
Bogdan Cucuteanu, Dragoş Negru, Otilia Gavrilescu, Iolanda Valentina Popa, Mariana Floria, Cătălina Mihai, Cristina Cijevschi Prelipcean, Mihaela Dranga 
World J Clin Cases 9(31):9395-9405. Published online Nov 6, 2021. doi: 10.12998/wjcc.v9.i31.9395
Retrospective Study
Observational Study
Cláudia N Montemor, Marcos Tadeu P Fernandes, Audrey S Marquez, Regina Célia Poli-Frederico, Rubens Alexandre da Silva, Karen B P Fernandes 
World J Clin Cases 9(31):9491-9499. Published online Nov 6, 2021. doi: 10.12998/wjcc.v9.i31.9491
Meta-Analysis
Case Report