De Matteis, F [Serum levels of triiodothyronine and thyroxine in the 1st 15 days of life of the newborn infant with low body weight]. [electronic resource] - Minerva pediatrica Mar 1974 - 409-16 p. digital Publication Type: Journal Article ISSN: 0026-4946 Subjects--Topical Terms: Age FactorsBirth WeightHumansInfant, NewbornInfant, PrematureIodine RadioisotopesRadioimmunoassayThyroxine--bloodTriiodothyronine--blood