A Forward-Adjoint Operator Pair Based on the Elastic Wave Equation for Use in Transcranial Photoacoustic Computed Tomography. - Kenji Mitsuhashi; Joemini Poudel; Thomas P. Matthews; Alejandro Garcia-Uribe; Lihong V. Wang; Mark A. Anastasio (SIAM J. Imaging Sci., 2017)