@misc{indiciae7088169b7d0c, title = {Operational quality assurance: a new concept defined.}, author = {R Frazer}, year = {1991}, doi = {10.1016/s1046-9095(05)80594-x}, url = {https://pubmed.ncbi.nlm.nih.gov/10109729/}, note = {Source identifier: 10109729} }