Citace podle APA

Sajid, K. M., Chaouachi, K., & Mahmood, R. (2008). Hookah smoking and cancer: Carcinoembryonic antigen (CEA) levels in exclusive/ever hookah smokers. BioMed Central.

Styl Chicago

Sajid, Khan Mohammad, Kamal Chaouachi, a Rubaida Mahmood. Hookah Smoking and Cancer: Carcinoembryonic Antigen (CEA) Levels in Exclusive/ever Hookah Smokers. BioMed Central, 2008.

Citace podle MLA

Sajid, Khan Mohammad, Kamal Chaouachi, a Rubaida Mahmood. Hookah Smoking and Cancer: Carcinoembryonic Antigen (CEA) Levels in Exclusive/ever Hookah Smokers. BioMed Central, 2008.

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