A constraint 's the study's retrospective structure, and additionally questions toward handling of pregnancy dating of 1997 We discovered that this new devices used various an easy way to would inaccuracies anywhere between past-menstrual-period-oriented and you can ultrasound-centered gestational age; it may also occur in other similar setup. Interestingly, neither federal nor around the globe advice explore such as for instance a discrepancy to be a threat indication [ten, 11], despite relevan...
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