Elie A Akl1,2
, Nancy Maroun3
, Stella Major4
, Claude Afif5
, Abir Abdo6
, Jacques Choucair7
, Mazen Sakr8
, Carl K Li2
, Brydon JB Grant1,2
and Holger J Schünemann9 
1
Department of Medicine, University at buffalo, NY, USA
2
Department of Social and Preventive Medicine, University at buffalo, NY, USA
3
Department of Sociology, University at buffalo, NY, USA
4
Division of Epidemiology, Public Health and Primary Care, Imperial College School of Medicine in London, UK
5
Department of Medicine, University of Balamand, Beirut, Lebanon
6
Department of Medicine, Lebanese University, Beirut, Lebanon
7
Department of Medicine, Université Saint Joseph, Beirut, Lebanon
8
Department of Medicine, Beirut Arab University, Beirut, Lebanon
9
Dept. of Epidemiology & INFORMA, Italian National Cancer Institute Regina Elena, Rome, Italy