TY - RPRT TI - Point spread function mapping with parallel imaging techniques and high acceleration factors: fast, robust, and flexible method for echo-planar imaging distortion correction. AU - M Zaitsev AU - J Hennig AU - O Speck PY - 2004 DO - 10.1002/mrm.20261 UR - https://pubmed.ncbi.nlm.nih.gov/15508146/ ID - 15508146 ER -