TY - RPRT TI - Nonlinear elasticity imaging: theory and phantom study. AU - Ramon Q Erkamp AU - Stanislav Y Emelianov AU - Andrei R Skovoroda AU - Matthew O'Donnell PY - 2004 UR - https://pubmed.ncbi.nlm.nih.gov/15217231/ ID - 15217231 ER -