Khan, Obaidullah <br/><br/>
Evaluating the effects of frequency and duration of tobacco use on oral mucosa in patients visiting Dow International Dental College / 
by Obaidullah Khan ; supervised by Abdul Hafeez Shaikh 
 - Karachi  2021 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Master of Sciences <br/>Oral Medicine