Genotyping of in the People Referred to Health Centers of Semnan City.

(), is one of the major causes of gastrointestinal disorders worldwide, infecting the small intestine of humans and animals. Based on the genetic characteristics of the parasite, eight genotypes (A to H) have been identified in clinical samples. The main purpose of the present study was to find the genetic diversity of in people referred to health centers in Semnan, Iran, using PCR.

The Combined Effect of Noise and Solvent Exposure on Hearing Loss in the Tire Factory Workers.

Noise and organic solvents are common in many industries and both of them affect hearing. In this study, we estimated the concurrent effect of them on hearing by evaluating the existence of notch in audiograms of workers. The number of 540 persons were enrolled in this study after eliminating workers who had the exclusion criteria.