PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30687942-1 2019 PURPOSE: To determine the exchange parameters for the CEST of phosphocreatine (PCrCEST) in phantoms and to characterize PCrCEST in vivo in the muscle at different saturation powers and magnetic fields. Phosphocreatine 62-77 pyruvate carboxylase Mus musculus 79-86