If you have any questions or comments about the website or about the study in general, please feel free to contact:
Ms. Marwa Adawi 
Office: (+974) 4439 0637
Mobile: (+974) 50160391 
Email: marwa.hmc@gmail.com
Dr. Ahmad Al Mulla 
Office: (+974) 4439 2778 
Mobile: (+974) 55523553 
Email: almulla@hmc.org.qa
Mailing address for Shisha Study is:
Hamad Medical Corporation 
Tobacco Control Unit 
Barwa Towers, Al-Sadd Street 
Barwa Tower 3, 11th Floor 
Doha, Qatar 
P.O. Box 3050