Media type: E-Article Title: The phenotype of primary hyperparathyroidism with normal parathyroid hormone levels: How low can parathyroid hormone go? Contributor: Wallace, Lucy B.; Parikh, Rikesh T.; Ross, Louis V.; Mazzaglia, Peter J.; Foley, Christina; Shin, Joyce J.; Mitchell, Jamie C.; Berber, Eren; Siperstein, Allan E.; Milas, Mira imprint: Elsevier BV, 2011 Published in: Surgery Language: English DOI: 10.1016/j.surg.2011.09.011 ISSN: 0039-6060 Origination: Footnote: