Reporting of cigar use among adolescent tobacco smokers.

Introduction: With the changing landscape of tobacco products, the divide between cigarettes and cigars is obscured, so understanding adolescent reporting of cigar use is needed to improve best practices for surveillance, screening, and prevention/intervention. This study examined adolescents' reported cigar use and correlates of use.

Methods: Participants (N=186) were 13-17year old tobacco users participating in a prospective study of adolescent smoking behaviors.

Recruitment of adolescents for a smoking study: use of traditional strategies and social media.

Engaging and retaining adolescents in research studies is challenging. Social media offers utility for expanding the sphere of research recruitment. This study examined and compared traditional and Facebook-based recruitment strategies on reach, enrollment, cost, and retention.

Frequent marijuana use is associated with greater nicotine addiction in adolescent smokers.

Background: Marijuana and tobacco are the substances used most commonly by adolescents and co-occurring use is common. Use of one substance may potentiate the addictive properties of the other. The current study examined the severity of nicotine addiction among teen smokers as a function of co-occurring marijuana use.

Characteristics of adolescent intermittent and daily smokers.

Introduction: Intermittent smoking is common among adolescent smokers, but little is known about adolescent intermittent smokers (ITS). This study describes a cohort of adolescent ITS and compares them to adolescent daily smokers (DS) for the purpose of providing a more detailed characterization of adolescent ITS, specifically patterns of smoking, level of self-reported addiction, and experience with cessation

Methods: Participants were 124 ITS and 55 DS. ITS were defined as smoking at least monthly but <30 days per month; and DS as smoking daily.

[Photodynamic therapy in combined treatment of stage III non-small cell lung carcinoma].

The aim of the study was to evaluate the effectiveness of combined treatment of locally advanced lung cancer with the use of neoadjuvant chemotherapy and surgery with the use of pre- and intraoperative photodynamic therapy. 20 patients with IIIa (n=7) and IIIb (n=13) stage of non-small cell lung carcinoma were included. At the time of diagnosis the surgical treatment was decided to abstain because of the trachea invasion in 9 patients, wide mediastinal invasion in 2 patients and contralateral mediastinal lymph nodes metastases in 2 patients; pneumonectomy was not possible due to the poor respiratory function in 7 patients.