Photographs of the face of a HIV positive patient with an esophageal ulcer of 6 cm (about 3.2 inches) who used the dietary supplementation with melatonin, vitamins and amino acids in four different time periods (with permission)[8,9]. A: March 2002: Before the ulcer appeared (patient weighed 80 kg); B: October 12, 2003: During the period of the ulcer (patient weighed 40 kg); C: November 14, 2003: After 32 d of treatment (patient weighed 70 kg); D: July 2, 2004: after 9 mo of treatment. The patient now has body weigh as of March 2002 (80 kg).