@misc{indiciaed6d6c3425334, title = {The current extent of "direct access" utilization.}, author = {B S Allen and P E Weary}, year = {1981}, doi = {10.1016/s0190-9622(81)80009-6}, url = {https://pubmed.ncbi.nlm.nih.gov/7287963/}, note = {Source identifier: 7287963} }