Toronto: The lightest and the heaviest foetuses are at much higher risk of being stillborn than those of average weight, new research has found.Stillbirth is traditionally defined as the death of a foetus at more than 23 weeks of gestation weighing 500 grams or more. Foetuses which are "severely small for gestational age," disproportionately account for about six percent of all stillbirths, according to researchers of St. Michael`s Hospital. Foetuses that are "severely large for gestational age," account for nearly one percent of stillbirths, reports the Journal of Perinatology.
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