706,193 PROCEEDINGS Proceedings of the International Symposium on Laboratory Screening Techniques for Inbon Errors of Metabolism in Hewborn and Selectec High-Risk Infants.Warsaw,Poland September 3-6, 1972.Ed, Maria Barbara Cabalska. Washington,D.C. 1976.The Foreign Scientific Publ. Department of the...Technical and Economic Infoimation,Warsaw 8° s. 285,nlb. 1, il.