Glycerophosphocholine and glycerophosphoethanolamine are not the main sources of the <i>in vivo</i> <sup>31</sup>P MRS phosphodiester signals from healthy f... oleh Wybe JM van der Kemp, Bertine L Stehouwer, Jurgen H Runge, Jannie P Wijnen, Aart J Nederveen, Peter R Luijten, Dennis WJ Klomp