Background: Approximately 30% of reproductive age women and 35% of reproductive age men in the United States smoke cigarettes. Substantial harmful effects of cigarette smoke on fecundity and reproduction have become apparent but are not generally appreciated. smoking is becoming increasingly popular in many parts of the world as in eastern Mediterranean and Arabic countries including Iran. The ...

background: cigarette smoking is the largest preventable risk factor for morbidity and mortality in developed countries where at least one in four adults smoke cigarettes.healthcare providers who smoke are less likely to advise patients to quit smoking. the aim of this study is to find out the frequency of to acco smoking among medical professionals in tertiary care hospitals of karachi, and to...

background laryngeal cancer though accounts for only 1.5% of all malignant neoplasm. scientific evidence has shown that cancers of the oral cavity, larynx, lung and esophagus are associated with cigar smoking. the present study is to examine by case-control method the impact of smoking on laryngeal cancer. material and methods one hundred and six hospitalized cases of otolaryngology department ...