For Public NDFES, ATRES, MPNAG,and JFMS: WORK RELATED MUSCULOSKELETAL DISORDERS AMONG SELECTED PRIMARY AND SECONDARY PUBLIC- SCHOOL TEACHERS IN METRO MANILA Posted on July 14, 2017 by DepEd Mandaluyong Leave a comment 17-07-056. WORK RELATED MUSCULOSKELETAL DISORDERS AMONG SELECTED PRIMARY AND SECONDARY PUBLIC- SCHOOL TEACHERS IN METRO MANILA Memorandum