Fig. 1From: Ultrasonographic and macroscopic study of pregnancy in golden hamsterThe ultrasound images on days 7 (a), 10 (b), 12 (c), and 17 (d) of pregnancy in golden hamsters. Crown-rump length (CRL), gestational sac diameter (GSD), and head diameter (HD) were used to estimate the gestational age of golden hamstersBack to article page