Table 1.

Effects of MTX on mouse embryos.

Group	Litters n	Embryonic number n	Crown-rump length mm	Body weight mg
Control	4	33	6.39±0.53	22.39±3.33
MTX (4.5 mg/kg)	4	31	4.35±0.37**	9.59±3.79**

^** P<0.01 compared to the control group.