“…However, the follow-up studies of Siurala et al (15) and Siurala and V uorinen (17) suggest that gastritis, once established, tends to remain and to progress, and that a complete healing is rare. Accordingly, the lack of gastric response to treatment excludes by no means the possibility that gastritis is caused by iron deficiency, as has been suggested by W itts (21), Badenoch (6). Iron deficiency is known to cause angular stomatitis and changes in the nails and tongue.…”