|
T |
= |
Tumors |
|
H |
= |
Hormones |
|
I |
= |
Infectious and Immune Disease |
|
N |
= |
Nutrition |
|
C |
= |
Central Nervous system |
|
M |
= |
Miscellaneous |
|
E |
= |
Electrolyte Abnormalities and Enviromental Toxins |
|
D |
= |
Drugs |