@misc{indiciae24fd97e4fd73, title = {VITAMIN B 12 MALABSORPTION.}, author = {L W SULLIVAN and G H JEFFRIES}, year = {1965}, doi = {10.1056/nejm196501142720222}, url = {https://pubmed.ncbi.nlm.nih.gov/14223121/}, note = {Source identifier: 14223121} }