Suggested algorithm for bone marrow biopsy and skeletal imaging in patients with monoclonal gammopathy of undetermined significance. #Mayo Clinic Risk Stratification Model. *No unexplained symptoms or laboratory features concerning for serious plasma cell d... Suggested algorithm for bone marrow biopsy and skeletal imaging in patients with monoclonal gammopathy of undetermined significance. #Mayo Clinic Risk Stratification Model. *No unexplained symptoms or laboratory features concerning for serious plasma cell disorder. Ronald S. Go, and S. Vincent Rajkumar Blood 2018;131:163-173 ©2018 by American Society of Hematology