Mutual support groups whose members are individuals who wish to recover from their dependence on nicotine and give up cigarettes, cigars, pipe tobacco, chewing tobacco, snuff or other substances containing nicotine. The groups meet in-person, by telephone or via the Internet; provide emotional support, information and resources to help participants come to terms with their addiction; and may include faith-based and secular 12-step groups as well as non-12 step groups.

Mutual support groups whose members are people who have a disability, illness or other health condition, their families and friends. The groups meet in-person, by telephone or via the Internet; and provide an opportunity for participants to share information, resources, practical tips for daily living and encouragement about issues related to the disability or health problem.

A condition in which there is a malignancy in the trachea, air sacs or other lung tubes which may appear as an ulcer in the windpipe, as a nodule or small flattened lump, or on the surface blocking air tubes. It may also invade the surface of tubes extending to lymphatics into blood vessels.

A group of diseases that includes asthma, bronchitis, emphysema and bronchiectasis which involve obstruction of an individual's airflow. The conditions may be chronic and irreversible or reversible but recurrent.

Any of a variety of disorders of the lungs, pleural cavity, bronchial tubes, trachea, upper respiratory tract or the associated nerves and muscles that are responsible for breathing. Included are obstructive pulmonary diseases such as emphysema and asthma that involve narrowing or blockage of the airways which carry oxygen and other gases into and out of the lungs; restrictive lung diseases such as sarcoidosis and asbestosis that result in incomplete lung expansion and a reduction in the ability of the lungs to take up oxygen and release carbon dioxide; upper and lower respiratory tract infections; benign and malignant tumors affecting the lungs and associated tissue; and pulmonary vascular diseases such as pulmonary hypertension or pulmonary edema that affect pulmonary circulation.

A rare and sometimes life threatening disorder of the lungs in which pressure in the pulmonary artery leading to the heart rises above normal levels. Symptoms include shortness of breath, fatigue, chest pain, dizzy spells and fainting.