[\'Department of Oral Pathology and Microbiology, YCMM and RDF\'s Dental College and Hospital, 166/1, Vadgaon Gupta, Shendi MIDC, Ahmednagar, Maharashtra, 414003, India. drrajput13@gmail.com.\']
Systematic review of the prevalence of current smoking among hospitalized COVID-19 patients in China: could nicotine be a therapeutic option?: Comment.