Authors: Masoud Rahimian, Mohammad Samet, Mahdi HosseiniB  Ref: Int J OHSFE-Allied Sci./Vol. 9/Issue 1/Jan-Dec,2017/002. Abstract: Respiratory diseases as a consequence of occupational hazardous exposure are common in many workers. Henna milling is grinding of red henna (Lawsonia Intermis) plant roots to produce a colorizing powder used mainly for cosmetic purposes. This processing takes place only in limited … Continue reading Effects of Henna milling on spirometry parameters, fractional exhaled nitric oxide and respiratory symptoms: A cross-sectional study