TY - RPRT TI - Theoretical framework for spectrum analysis in ultrasonic tissue characterization. AU - F L Lizzi AU - M Greenebaum AU - E J Feleppa AU - M Elbaum AU - D J Coleman PY - 1983 DO - 10.1121/1.389241 UR - https://pubmed.ncbi.nlm.nih.gov/6853848/ ID - 6853848 ER -