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References: Textbooks of obstetrics and midwivery
25.Hudson AT (1967) Relation of time of ligation of umbilical cord to neonatal anemia. J Am Osteopath Assoc. 1967 Aug;66(12):1369-72.
26.Emmanouilides GC & Moss AJ (1971) Respiratory distress in the newborn: effect of cord clamping before and after onset of respiration. Biol Neonate. 1971;18(5):363-8.
27.Saigal S, O'Neill A, Surainder Y, Chua LB, Usher R. (1972) Placental transfusion and hyperbilirubinemia in the premature. Pediatrics. 1972 Mar;49(3):406-19
28.Theorell K, Prechtl HF, Blair AW, Lind J. (1973) Behavioural state cycles of normal newborn infants. A comparison of the effects of early and late cord clamping. Dev Med Child Neurol. 1973 Oct; 15(5): 597-605
29.Künzel W. (1982) Abnabelung – Überlegungen zur Wahl des richtigen Zeitpunktes - [Cord clamping at birth - considerations for choosing the right time]. Z Geburtshilfe Perinatol. 1982 Apr-May; 186(2): 59-64.
30.Dunn PM. (1988) Tight nuchal cord and neonatal hypovolaemic shock. Arch Dis Child. 1988 May; 63(5): 570-1
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31.Morley GM (1998) Cord closure: can hasty clamping injure the newborn? OBG Management 7:29-36.
32.Dunn PM. (1992) Banking umbilical cord blood. Lancet. 1992 Aug 1; 340(8814): 309
33.Buckley S.  (2001) A natural approach to the third stage of labour. A look at early cord clamping, cord blood harvesting, and other medicalinterference.  Midwifery Today Int Midwife. 2001 Fall;(59):33-6.
34.Mercer JS. (2001) Current best evidence: a review of the literature on umbilical cord clamping. J Midwifery Womens Health. 2001 Nov-Dec;46(6):402-14.
35.Capasso L, Raimondi F, Capasso A, Crivaro V, Capasso R, Paludetto R. (2003) Early cord clamping protects at-risk neonates from polycythemia. Biol Neonate. 2003;83(3):197-200.
36.
•Textbooks of obstetrics and midwifery
36.36. Churchill F (1850) On the Theory and Practice of Midwifery. London: Henry Renshaw.
37.37. Swayne JG (1856) Obstetric Aphorisms: For the use of students commencing midwifery practice. London: John Churchill.