Cotton twill is a frequent fabric choice for menâs casual pants in particular. Brands like Dockers have long made use of twill to produce popular menâs chinos, which tend to be both light and comfortable, offering a dressier, but still comfortable change from denim.
URL of this page: //medlineplus.gov/ency/article/002302.htm. Small for gestational age means that a fetus or an infant is smaller or less developed than normal for the baby's gender and gestational age. Gestational age is the age of a fetus or baby that starts on the first day of the mother's last menstrual period.
The mathematic formula for estimating the gestational age from measurements of the gestational sac is: Gestational age = 4 weeks plus (mean sac diameter in mm x days). For example, a gestational sac measuring 8 mm would be approximately 5 weeks and 1 day gestational age.(8mm equals 8 days; 4 weeks plus 8 days = 5 weeks and 1 day).eave this field blank. Keyword Tags: ultrasound sonogram gestational sac fetus early pregnancy. The gestational sac is the structure surrounding the fetus early in pregnancy and its shape early in pregnancy (usually before 8-10 weeks) is important.