@misc{indiciae8b6b14e37bfc, title = {Hypobaric versus hyperbaric spinal anesthesia in geriatric surgery.}, author = {H A Erdemir and S S Oget and G Corssen}, year = {1976}, url = {https://pubmed.ncbi.nlm.nih.gov/1251982/}, note = {Source identifier: 1251982} }