Diagnostic preparations for medical purposes; medical preparations in the nature of contrast agents, molecular imaging agents, radiopharmaceuticals, PET agents, radiotracers, PET tracers and diagnostic imaging agents for use in medical imaging; Positron Emission Tomography (PET) tracing chemicals for medical use; PET tracing chemicals and reagents prepared for ingestion or injection into humans and animals for medical use; diagnostic chemicals for medical purposes; reagents for medical purpos...