Gestational age was determined by date of the woman's last menstruation, uterine height, or ultrasound.
Incident cases were determined by date of diagnosis on the CRF and are expressed in 100,000 person-years.
With the exception of GTN, gestational age of specimens was determined by dating from last menstrual period, standard ultrasound or foot length measurements (Drey et al. 2005).
Gestational age was determined by date of last menstrual period when reliable and sonographic confirmation carried out by the first 20 weeks of gestation and/or first trimester sonographic measurement of crown- rump length.
Gestational age at delivery was determined by date of first day of the last menstrual period (LMP), or a gestational age estimate from an early ultrasound (≤ 25 weeks), the latter used when the two estimates disagreed by > 2 weeks.
The following baseline data were collected about each birth in a standard form: the name of the clinic, maternal age, weight, height, parity, gestational age (determined by date of last menstruation), pregnancy and delivery complications and delivery date, and neonatal 1-minute Apgar score, sex, birth weight, length, head circumference and presence of congenital malformations.
Gestational age was determined by certain dates confirmed by ultrasound before 20 weeks gestation or if dates uncertain by ultrasound alone prior to 20 weeks or if unavailable by examination of the newborn infant.
Inclusion criteria were that the child had a WA postcode as place of residence, was aged ≤18 years, and had been an inpatient (stayed at least one night; determined by admission date and separation date minus days of care provided by Hospital in the Home).
In Wisconsin, the recourse is to petition to recall one by one the lawmakers responsible for the offense (but only after they've been in office for over a year) in special elections whose date is determined by the date the petitions are filed.
The transition of Baizhi from vegetative to bolting or summer dormancy, and subsequent root mass is determined by sowing dates (Xingfu et al. 1999), fertilizing management (Derong et al. 1999) and environmental factors such as latitude.
The start date for radiotherapy was determined by the date of the first radiotherapy delivery code.
