Rappaport I, dePonce D, Sogn D, Wang Y Y
Ann Allergy. 1979 Jul;43(1):1-7.
RAST and intradermal testing correlated reasonably well for untreated patients for ragweed and molds and in treated patients for trees. Capillary blood was found to be comparable to venous blood as a source for RAST for ragweed and mixed grasses.