@misc{indiciae9c045ece6fc4, title = {THORACOPAGOUS TWINS WITH DIFFERING FIRST ARCH DEFECTS.}, author = {G S ROBERTSON and J MCKENZIE}, year = {1964}, doi = {10.1002/bjs.1800510517}, url = {https://pubmed.ncbi.nlm.nih.gov/14153392/}, note = {Source identifier: 14153392} }