{HEAD ~ This new 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 ~ This new 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
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