Is Celgene Corporation highly vertically integrated? If yes, does it also employ taper integration? Are any of the vertical value chain operations of Celgene corporation offshored? If So, list some of

Is Celgene Corporation highly vertically integrated? If yes, does it also employ taper integration? 

Are any of the vertical value chain operations of Celgene corporation offshored? If So, list some of the pros and cons of having this part of the value chain outside the home country.