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Open-Access Journal
Review
Elisabetta Del Zotto, Paolo Costa, Andrea Morotti, Loris Poli, Valeria de Giuli, Alessia Giossi, Irene Volonghi, Antonio Callea, Alessandro Padovani, Alessandro Pezzini 
World J Meta-Anal 2(3):49-63. Published online Aug 26, 2014. doi: 10.13105/wjma.v2.i3.49
Observational Study
Meta-Analysis