PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16307897-2 2006 The feasibility of the experiments in coupled spin-1/2 systems is demonstrated for fully 13C-labelled L-alanine and Pb3P4O13 crystalline compounds, considered as model three-spin and four-spin systems, respectively. 13c 89-92 spindlin 1 Homo sapiens 46-54