Hepatitis A blood tests check for immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies. An IgG-positive and IgM-negative result may suggest immunity to hepatitis A. A doctor may request a ...
HER2-negative and HER2-positive are types of breast cancer that share some things in common, but they have plenty of differences, too. Which kind you have can affect the treatment you get. Cancer is ...
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