Department XI of Pediatrics-1st Pediatric Discipline, Center for Research on Growth and Developmental Disorders in Children, 'Victor Babeș' University of Medicine and Pharmacy Timișoara, Eftimie Murgu Sq no. 2, 300041 Timișoara, Romania. 1st Pediatric Clinic, 'Louis Țurcanu' Children's Clinical and Emergency Hospital, Iosif Nemoianu 2, 300011 Timișoara, Romania. Department of Biology-Chemistry, West University of Timişoara, Pestallozi 16, 300115 Timişoara, Romania. Laboratory of Advanced Researches in Environmental Protection, Oituz 4, 300086 Timişoara, Romania. Department VIII of Neuroscience-Psychology Discipline, 'Victor Babeș' University of Medicine and Pharmacy Timișoara, Eftimie Murgu Sq no. 2, 300041 Timișoara, Romania. Department VII of Internal Medicine-Gastroenterology Discipline, Advanced Regional Research Center in Gastroenterology and Hepatology, 'Victor Babeș' University of Medicine and Pharmacy Timișoara, Eftimie Murgu Sq no. 2, 300041 Timișoara, Romania. Gastroenterology and Hepatology Clinic, 'Pius Brînzeu' County Emergency Clinical Hospital, Liviu Rebreanu 156, 300723 Timișoara, Romania.