Development of [<sup>18</sup>F]-Labeled Pyrazolo[4,3-<i>e</i>]-1,2,4- triazolo[1,5-<i>c</i>]pyrimidine (SCH442416) Analogs for the Imaging of Cerebral Adenosine A<sub>2A</sub>Receptors with Positron Emission TomographyShivashankar Khanapur, Philip H. Elsinga, Anup D. Shah et al.|Journal of Medicinal Chemistry|2014Cited by 33