1. Encyclopedia, University of Rochester Medical Center Rochester, NY
2. Mullen E, Mendez N. Hyper viscosity in patients with multiple myeloma. OncNurs Forum. 2008;35:350–2.
3. Perez Rogers A, Estes M. Hyper viscosity Syndrome. In: StatPearls. Treasure Island (FL): StatPearls Publishing; 2020
4. Han J, Wang J, Zhang Y. Prevalence of monoclonal gammopathy of undetermined significance in a large population with annual medical check-ups in China. Blood Cancer J. 2020;10:34.
5. Robert AK, Ellen DR, Terry MT. Clinical course and prognosis of smoldering (asymptomatic) multiple myeloma. N Engl J Med. 2007;25:356.