Chen A. Zhang, You Zhuo, Heather A. Moniz, Shuo Wang, Kelley W. Moremen, James H. Prestegard, Edward Brown, Jenny J. Yang. Direct Determination of Multiple Ligand Interaction on the Extracellular Domain of the Calcium Sensing Receptor. Journal of Biological Chemistry (2014). Nov 28; 289(48):33529-42. doi: 10.1074/jbc.M114.604652. Epub 2014 Oct 10. PMID: 25305020.