PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
22571785-4	2012	The first reported PDE PET ligands were the 11C-labeled versions of the PDE4 inhibitors rolipram and Ro 20-1724, and, to date, PET imaging studies in human subjects have only been reported with [11C]rolipram.	Carbon-11	44-47	phosphodiesterase 4A	Homo sapiens	72-76