1. https://www.dictionary.com/. Accessed 8 Jan 2021
2. National Research Council (US) and Institute of Medicine (US) Committee on State of the Science of Nuclear Medicine (2007) Advancing nuclear medicine through innovation. National Academies Press (US), Washington (DC)
3. Chetlen AL, Degnan AJ, Guelfguat M, Griffith B, Itri J, Matta H et al (2018) Radiology research funding: current state and future opportunities. Acad Radiol 25:26–39
4. U.S. National Library of Medicine. Funding Support (Grant) Information in MEDLINE/PubMed. https://www.nlm.nih.gov/bsd/funding_support.html. (Accessed 25 Sept 2020)
5. Yoon DY, Yun EJ, Ku YJ, Baek S, Lim KJ, Seo YL et al (2013) Citation classics in radiology journals: the 100 top-cited articles, 1945–2012. AJR Am J Roentgenol 201:471–481