Nitrite and Nitrate Concentrations in the Drinking Groundwater of Shiraz City, South-central Iran by Statistical Models - BADEE NEZHAD, Ahmad; EMAMJOMEH, Mohammad Mahdi; FARZADKIA, Mahdi; JONIDI JAFARI, Ahmad; SAYADI, Mehrab; DAVOUDIAN TALAB, Amir Hossein (Iranian Journal of Public Health, 2017)