PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10200221-10 1999 Moreover, neurons of ages P14 or P21 showed a partial or complete recovery after reintroduction of oxygen and glucose, unlike mature neurons. Oxygen 99-105 KRAS proto-oncogene, GTPase Rattus norvegicus 33-36