Umbilical cord clamp
		>			Ziegler CE (1922) Additions to our obstetric armamentarium.  Am J Obstet Gynecol 3:46-53
	Transfer of blood from placenta to lungs
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				Gunther M (1957) The transfer of blood between baby and placenta in the minutes after birth. Lancet. 1957 Jun 22;272(6982):1277-80.
	Expansion of the alveoli
		>				Jäykkä, S (1958) Capillary erection and the structural appearance of fetal and neonatal lungs. Acta Pædiatrica 47:484-500.
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						Mercer JS, Skovgaard RL. (2002) Neonatal transitional physiology: a new paradigm. J Perinat Neonatal Nurs. 2002 Mar;15(4):56-75
	Transfer of respiration from placenta to lungs
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						Redmond A, Isana S, Ingall D. (1965) Relation of onset of respiration to placental transfusion. Lancet. 1965 Feb 6;17:283-5