depending on the exact time of gestation when lithium carbonate is administered , the frequencies of exencephaly and spinal kinking after treatment 1 hour into the ninth day are compared with those after treatment 2 or 3 hours into the ninth day , incidence of exencephaly is increased at the later time and the incidence of spinal kinking is decreased .
C0032961
gestation
C0085217
lithium carbonate