Challenges in the reproducibility of clinical studies with resting state fMRI: An example in early Parkinson's disease. - Ludovica Griffanti; Michal Rolinski; Konrad Szewczyk-Krolikowski; Ricarda A. Menke; Nicola Filippini; Giovanna Zamboni; Mark Jenkinson; Michele T. M. Hu; Clare E. Mackay (NeuroImage, 2016)