@misc{indiciae7e19d4c1401e, title = {Mastoidectomy using an osteoplastic flap.}, author = {S Richards and D Kilby}, year = {1971}, doi = {10.1017/s0022215100074405}, url = {https://pubmed.ncbi.nlm.nih.gov/5097125/}, note = {Source identifier: 5097125} }