TY  - RPRT
TI  - Valve replacement using heterografts. Clinical experience.
AU  - K Kubo
AU  - E Mazzei
AU  - D G Mulder
PY  - 1971
DO  - 10.1001/archsurg.1971.01350060026009
UR  - https://pubmed.ncbi.nlm.nih.gov/5577047/
ID  - 5577047
ER  -