Research of William Windle and colleagues with human infants
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				DeMarsh QB, Alt HL, Windle WF, Hillis DS (1941) The effect of depriving the infant of its placental blood; on the blood picture during the first week of life.  JAMA 116:2568-2573
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				Wilson EE, Windle WF, Alt HL (1941) Deprivation of placental blood as a cause of iron deficiency in infants. Am J Dis Child 62:320-327.
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				DeMarsh QB, Windle WF, Alt HL (1942) Blood volume of newborn infant in relation to early and late clamping of umbilical cord. Am J Dis Child 63:1123-1129.
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				DeMarsh QB Alt HL, Windle WF (1948) Factors incluencing the blood picture of the newborn; studies on sinus blood on the first an third days. American Journal of Diseases of Children 75:860-871.