Table 1.

Type of articles found and correspondence in the references.

Type of article	Number of articles	References
Subject review	5	1, 7, 11, 20, 41
Diagnostic	2	9, 28
Historical articles	3	3, 4, 5
Prevalence and incidence only	1	10
Physiopathology and physiopathogeny	10	8, 12, 13, 14, 15, 16, 17, 18, 19, 26
Treatment	5	6, 24, 27, 35, 38
Outcome and associated conditions	15	2, 21, 22, 23, 25, 29, 30, 31, 32, 33, 34, 36, 37, 39, 40