PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23124027-13 2012 CONCLUSIONS: GRK2-mediated desensitization-downregulation of adrenergic and dopaminergic receptors impairs inotropic reserve in PAH-RVH. p-Aminohippuric Acid 128-131 G protein-coupled receptor kinase 2 Homo sapiens 13-17