TY  - RPRT
TI  - Back muscle strength, lifting, and stooped working postures.
AU  - E Poulsen
AU  - K Jørgensen
PY  - 1971
DO  - 10.1016/0003-6870(71)90036-6
UR  - https://pubmed.ncbi.nlm.nih.gov/15676693/
ID  - 15676693
ER  -