Thallium exists in opioid poisoned patients.

Background: Thallium (Tl) is a toxic heavy metal that exists in nature. Tl poisoning (thallotoxicosis) may occur in opioid addicts. This study was designed to evaluate the frequency and level of urinary Tl in opioid abusers.

Respiratory symptoms and pulmonary function testes in lead exposed workers.

Background: The exposure to noxious agwents such as lead my cause lung disorders.

Objectives: In the present study, pulmonary function tests and self-reported respiratory symptoms in lead exposure workers were compared with matched control subjects.

Materials And Methods: The frequency of respiratory symptoms were evaluated in a sample of 108 lead exposure workers and 100 control subjects with similar age using a questionnaire including questions on respiratory symptoms in the past year.