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Original Article

The 24-Hour Rhythmicity of birth: A Populational Study

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Pages 31-36 | Received 26 Feb 1981, Published online: 09 Jul 2009

References

  • Bakketeig L. S., Bergsjö P., Eikhom S. N. Varighet av spontant inntredende födsel. 1977; 442, Tidsskr. f. Den norske Laegefor.
  • Bjerkedal T., Bakketeig L. S. Medical Registration of Births in Norway during the 5-Year Period 1967–1971. Bergen 1975; 7
  • Banning E. The Physiological Clock. London 1973; 7
  • Charles E. The Hour of Birth, Birt, J. prev. soc. Med. 1953; 7: 43
  • Conroy R. T. W. L., Mills J. N. Human Orcadian Rhythms. London 1970; 112
  • Gauquelin M. Note sur le rythme journalier du debut des douleurs de l'accouchement. Gynecol Obstet 1967; 66: 229
  • Kaiser I. H., Halberg F. Circadian periodic aspects of birth. Ann N Y Acad Sci 1962; 98: 1056
  • Shettles L. B. Hourly variation in onset of labor and rupture of membranes. Am J Obstet Gynecol 1960; 79: 177

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