Categorizing Existing Articles

0.-  NOTE: This is going to be done by Arbab by a Bot. 1.-  NOTE: Always goes with 2.- §  3.- §   4.- §    NOTE:  All  Drug articles already have the category added, so you have none of these to do. 5.- §  6.- §   7.- §   8.-   9.-   Always goes with  21.- 10.- Always goes with 21.- 11.-  12.-   13.-   NOTE: Most of these are already done. 14.-  16.-   17.-   18.- §   19.-  Always goes with 21.- 20.-  21.- §   22.-  Always goes with  21.-