Rest of the world

Which countries are classified as ROW countries.Plz provide any links which I can refer to

Rest of the world (ROW) contains 190 countries as below
52 countries of Africa
36 countries of Asia excluding China, India & Philippines (total 39)
55 countries of Europe
21 countries of North America excluding Mexico (total 22)
14 countries of Oceania
12 countries of South America

Total ROW =190
Total Countries = 194


when China, India & Philippines and Mexico are excluding from the ROW can you please explain under which category do they belong it??

poential genotoxic impurities & genotoxic impurities are both same or different plzzzz clarify me