@misc{indiciaeee2fb9178bad, title = {Extended aortic root replacement with aortic allografts.}, author = {R L McKowen and D N Campbell and G F Woelfel and J W Wiggins and D R Clarke}, year = {1987}, url = {https://pubmed.ncbi.nlm.nih.gov/3821146/}, note = {Source identifier: 3821146} }