Table 1.

Distribution of the inter-landmark distances (mm)

	Mean	St. dev.	25°	Median	75°
Bregma-central sulcus	57.9	6.8	54.0	57.3	61.5
Lambda-perpendicular sulcus	10.1	6.9	5.7	10.3	14.5
Parietal bone length	114.2	5.8	109.8	114.2	118.8
Parietal lobe length	56.6	7.3	51.5	56.8	61.3
Precuneus length	37.0	7.6	31.3	37.3	41.4