On The Dark Side by John Cafferty & the Beaver Brown Band. This was written for Eddie and the Cruisers, a 1983 movie about a New Jersey bar band. In the film, the song becomes the band's big hit and leads to a second album and a conflict with their record company. Kenny Vance was the music supervisor on Eddie and the Cruisers.
The gestational age of 20â29 days was chosen because the fetal size with a crownârump length of 4â6 cm correlates well with the size of a human embryo at about 10â12 weeks, when selective reduction is often performed2.
Up to and including 13 6/7 weeks of gestation, gestational age assessment based on measurement of the crownârump length (CRL) has an accuracy of Â± 5â7 days (11â14). Measurements of the CRL are more accurate the earlier in the first trimester that ultrasonography is performed (11, 15â18).linical Considerations in the Third Trimester Gestational age assessment by ultrasonography in the third trimester (28 0/7 weeks of gestation and beyond) is the least reliable method, with an accuracy of Â± 21â30 days (19, 20, 23).