@article{202005.0113, doi = {10.20944/preprints202005.0113.v1}, url = {https://doi.org/10.20944/preprints202005.0113.v1}, year = 2020, month = {May}, publisher = {Preprints}, author = {Konstantinos Farsalinos and Konstantinos Poulas and Riccardo Polosa and Anastasia Barbouni and Pasquale Caponnetto and Raymond Niaura}, title = {Prevalence of Current Smoking and Association with Adverse Outcome in Hospitalized COVID-19 Patients: A Systematic Review and Meta-Analysis}, journal = {Preprints} }