Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content + Download Section PDF ++ AUTHOR ++ Laura A. Huppert, MD ++ Clinical Fellow ++ Division of Hematology/Oncology ++ Department of Medicine ++ University of California, San Francisco ++ ++ LEAD CONTRIBUTING EDITOR ++ Timothy G. Dyster, MD ++ Chief Resident ++ Department of Medicine ++ University of California, San Francisco