Fig. 4From: Immunoreactive trypsinogen levels in newborn screened infants with an inconclusive diagnosis of cystic fibrosisInitial sweat chloride measurements plotted against IRT levels for children with CF (represented by open circle = ○), children with CRMS/CFSPID who subsequently met the criteria for CF (CFSPID→CF; solid triangle = ▲) and those whose diagnosis remained uncertain (CFSPID→CFSPID; open square = □)Back to article page