acute accent; acute angle; acute anterior poliomyelitis; acute brain disorder; acute gastritis; acute glaucoma; acute glossitis; acute hemorrhagic encephalitis; acute inclusion body encephalitis; acute kidney failure; acute leukemia; acute lymphoblastic leukemia; acute lymphocytic leukemia; acute myelocytic leukemia; acute myeloid leukemia; acute organic brain syndrome; acute pyelonephritis; acute renal failure; acute schizophrenic episode; acute triangle; acute-angled triangle;