Opium use during pregnancy and risk of preterm delivery: A population-based cohort study. by Siavash Maghsoudlou, Sven Cnattingius, Scott Montgomery, Mohsen Aarabi, Shahriar Semnani, Anna-Karin Wikström, Shahram Bahmanyar

“…<h4>Method and findings</h4>We performed a population-based cohort study in the rural areas of the Golestan province, Iran between 2008 and 2010. We randomly selected 920 women who used (usually smoked) opium during pregnancy and 920 women who did not. …”
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Presenting the model of antecedents affecting moral-emotional acting in education by arefeh kazemi malekmahmoudi, negin jabbari, kiomars niaz azari

“…The statistical population in the quantitative section included education managers of Golestan province; by stratified random sampling method, as many as 270 people. …”
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Production of Arthrospira platensis algae to increase production efficiency and enhance immune system of grass carp, Ctenopharyngodon idella against Aeromonas hydrophila by Hossein Adineh

“…Materials and methods: The production of live spirulina algae was done in Arka Algae Hyrcanian Company, Golestan Province, in a greenhouse environment with 2 long pools with dimensions of 12 m long, 2.5 m wide and 50 cm height. …”
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