APA (7th ed.) Citation

Al-a, Tamil Azmi, & Al-Dubai Sami. (2012). Case control study on risk factors associated with esophageal cancer in Yemen. BMC.

Chicago Style (17th ed.) Citation

Al-a, Tamil Azmi, and Al-Dubai Sami. Case Control Study on Risk Factors Associated with Esophageal Cancer in Yemen. BMC, 2012.

MLA (9th ed.) Citation

Al-a, et al. Case Control Study on Risk Factors Associated with Esophageal Cancer in Yemen. BMC, 2012.