PET Counting Response Variability Depending on Tumor Location, Activity, and Patient Obesity: A Feasibility Study of Solitary Pulmonary Nodule Using Monte Carlo. - Lampros Theodorakis; George Loudos; V. Prassopoulos; Constantine Kappas; Ioannis Tsougos; Panagiotis Georgoulias (IEEE Trans. Medical Imaging, 2019)