Sources:

1-     British diabetic association .

2-     America diabetes association .

3-     Thyroid disease .

4-     British dental  association .

5-     BBC News online  .

6-     Howard Hughes Medical Institute .

7-     Journal of psychosomatic obstetrics and gynecology .

8-     New south wals press .

9-     Cambridge medline .

10-  United states department of agriculture’s .

11-  Alyson greenhalgh .

12-  World health organization .

13-  American psychiatric association .

14-  U.S Surgeon general .

15-  Joslin diabetes centre  .

16-  P.C  Molan university of waikato ( New Zealand ) .

17-  Standing Committee on health ( ottawa Canada ) .

18-  Obada zoubi ( in computer ) .