Normal skeletal development in

Csf1^op/Csf1^op; TgC/+mice. X-rays of 6-week-oldCsf1^op/Csf1^op mice injected with 12 μg recombinant human CSF-1 daily from day 3 of life (A) and 6-week-old littermate mice of genotypes +/Csf1^op(B,E,H), Csf1^op/Csf1^op(C,G,J), and Csf1^op/Csf1^op; TgC/+(D, F, I).