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