Fig 3. A, Relationship between each age group and mean of whole pontine diameter (with 1 SD). In each age group, the whole pontine diameter in the PVL group is significantly smaller than in the control group. B, Relationship between each age group and mean basis diameter (with 1 SD). In the 0-, 1-, and 3-year age groups, basis diameter in the PVL group was significantly smaller than in the control group. C, Relationship between each age group and mean tegmentum diameter (with 1 SD). In the 1-, 2-, and 3-year age groups, tegmentum diameter in the PVL group was significantly smaller than in the control group. D, Relationship between each age group and mean corpus callosal length (with 1 SD). In each age group, corpus callosal length in the PVL group was significantly smaller than in the control group.