{HEAD ~ This RIA} detects an endogenous Aα normal human plasma and {TAIL ~ elevated levels} of Aα in cystic fibrosis plasma and in rheumatoid arthritis synovial fluid samples 
detects
{ HEAD ~ This RIA } detects an endogenous Aα normal human plasma and { TAIL ~ elevated levels } of Aα in cystic fibrosis plasma and in rheumatoid arthritis synovial fluid samples
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH