Camden J, Martinez J R
Experientia. 1987 May 15;43(5):570-2. doi: 10.1007/BF02143588.
The activity of the ouabain-sensitive Na, K ATPase was measured in membrane fractions of the submandibular gland of 1-, 7-, 14- and 21-day-old rats. This activity increased with age and reached adult levels by 21 days.