1. Work-Related Musculoskeletal Disorders & Ergonomics. Centers for Disease Control and Prevention. Published 2020. Accessed March 2020. Available at: https://www.cdc.gov/workplacehealthpromotion/health-strategies/musculoskeletal-disorders/index.html
2. Top work-related injury causes. National Safety Council. Accessed March 2020. Available at: https://injuryfacts.nsc.org/work/work-overview/top-work-related-injury-causes
3. Musculoskeletal disorders and workplace factors: a critical review of epidemiologic evidence for work-related musculoskeletal disorders of the neck, upper extremity, and low back;Putz-Anderson;Nat. Inst. Occup. Safe. Health,1997
4. Musculoskeletal conditions. World Health Organization. Published 2019. Accessed April 2020. Available at: https://www.who.int/news-room/fact-sheets/detail/musculoskeletal-conditions
5. Ergonomic interventions, workplace exercies, and musculoskeletal complaints: a comparative study;Mehrparvar;Med. J. Islam. Repub. Iran,2014