Futterman, Bennett (2015). "Analysis of the Papal Benediction Sign: The ulnar neuropathy of St. Peter". Clinical Anatomy. 28 (6): 696–701. doi:10.1002/ca.22584. PMID26118346. S2CID21173813.
Futterman, Bennett (2015). "Analysis of the Papal Benediction Sign: The ulnar neuropathy of St. Peter". Clinical Anatomy. 28 (6): 696–701. doi:10.1002/ca.22584. PMID26118346. S2CID21173813.
Futterman, Bennett (2015). "Analysis of the Papal Benediction Sign: The ulnar neuropathy of St. Peter". Clinical Anatomy. 28 (6): 696–701. doi:10.1002/ca.22584. PMID26118346. S2CID21173813.