Temperature and concentration calibration of aqueous polyvinylpyrrolidone (PVP) solutions for isotropic diffusion MRI phantoms. oleh Friedrich Wagner, Frederik B Laun, Tristan A Kuder, Anna Mlynarska, Florian Maier, Jonas Faust, Kerstin Demberg, Linus Lindemann, Boris Rivkin, Armin M Nagel, Mark E Ladd, Klaus Maier-Hein, Sebastian Bickelhaupt, Michael Bach