@misc{indiciae1f882f189c18, title = {Peptic ulcer and hyperparathyroidism.}, author = {R R Gifford and R B Smith and L G Walker}, year = {1970}, doi = {10.1097/00007611-197008000-00006}, url = {https://pubmed.ncbi.nlm.nih.gov/5454849/}, note = {Source identifier: 5454849} }