The catalase test is used to primarily differentiate Staphylococi from _____________.     A. Gram-negatives   B. Microaerophiles   C. Streptococci   D. Anaerobes

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Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.