8Akihisa O, Masahiro H, Makoto O, et al. Nutritional state, maturational delay on electroencephalogram, and developmental outcome in extremely low birth weight infants [ J ]. Brain and Development, 2010, 32(8):613-618.
9Volpe J J. Neurology of the newborn (4th edition)[M]. Philadelphia: WB Saunders Company, 2011, 1:41-146.
10Knobloch H,Pasamanich B. Gesell and Amatruda's develop- mental diagnosis[M]. Third Edition, Harper and Kow, New York, 1974.