Attitudes and Behaviors Regarding Smoking in Friends and Relatives of Patients in Emergency Room: A New Frontier in the Fight against Tobacco oleh Metin Ocak, Mustafa Unal, Onur Ozturk, Abdussamed Vural, Arzu Ayraler, Muhammed Ali Oruc, Mustafa Yasin Selcuk, Gulsah Ozturk, Izzet Fidanci, Muhammed Emin Goktepe