@misc{indiciae5b56cd1ef56f, title = {Feet on the ground.}, author = {J M Douglass and S N Douglass and I M Rasgon and P M Fleiss}, year = {1979}, doi = {10.1016/s0140-6736(79)90930-9}, url = {https://pubmed.ncbi.nlm.nih.gov/84302/}, note = {Source identifier: 84302} }