https://www.selleckchem.com/products/bal-0028.html Objective. This study aimed to examine the occupational safety of oncology nurses. Methods. This cross-sectional study was conducted to examine the risks faced by oncology nurses in the units they work in and occupational safety. The data of the study were collected between April and October 2020 using an online questionnaire prepared by the researchers in line with the literature. The sample for the study consisted of 117 oncology nurses who voluntarily participated in the study and filled out the questionnaire completely. Results. More than half of the participants stated that they did not find occupational safety practices sufficient and were not given additional rights or psychological support given the risks of exposure. Conclusions. The study concluded that to improve occupational safety in oncology nurses, the physical conditions of the working environment should be improved, and up-to-date oncology and occupational safety training should be given regularly.Objectives. The chair is a standard piece of workstation equipment in an office. Previous studies showed that a suitable chair may reduce musculoskeletal symptoms. This review investigated the effect of chair intervention on lower back pain (LBP), discomfort and trunk muscle activation among office workers. Methods. Five electronic databases from 1980 to May 2020 were searched for relevant randomized and non-randomized controlled trials. The methodological quality of the included studies was assessed using the 13-item Cochrane risk of bias tool. Quality of evidence was assessed and rated according to Grading of Recommendations, Assessment, Development and Evaluations (GRADE) guidelines. Results. Two randomized controlled trials, 10 repeated-measures studies and two prospective cohort studies were included in this review. Nine studies were rated as high quality. The results indicated very low-quality to low-quality evidence for the conflicting effect of cha