Discovery of [<sup>11</sup>C]MK-6884: A Positron Emission Tomography (PET) Imaging Agent for the Study of M4Muscarinic Receptor Positive Allosteric Modulators (PAMs) in Neurodegenerative DiseasesLing Tong, Robert Mazzola, Michael Man‐Chu Lo et al.|Journal of Medicinal Chemistry|2020Cited by 41