List of Articles pain Open Access Article Abstract Page Full-Text 1 - Effect of pH on Separation of Solid Content from Paint Contained Wastewater by a Coagulant-flocculant Compound Mojtaba Semnani Rahbar Eskandar Alipour Reza Eskandari Sedighi Safoora Sajad Marzieh mohamadiani 10.22034/jchr.2018.544055 Open Access Article Abstract Page Full-Text 2 - The Correlation of Blood Xylene Levels and Neurological Disorders among Informal Car Painters Arie Kurnianto Tri Martiana Nemeskéri Zsolt István Ágoston Soedjajadi Keman 10.22034/jchr.2022.1942679.1432 Open Access Article Abstract Page Full-Text 3 - The Efficiency of Photodynamic Therapy in the Management of Pain in Patients with Oral Lichen Planus Mona Abdallah Sabry Ali Mohamed Saafan Hanaa Mohamed El-Shennawy Amal Ali Hussine Doaa Mohamed Abd El- Aziz Doaa Ahmed Abdel Fadeel 10.22034/jchr.2021.686355