I think the biggest_________for us is the regulatory environment. The laws that we need to follow are quite_________– and quite rightly so. We in the pharmaceutical industry have the same interests as the doctor. We want to help_________lead better lives. We have to present the data in a_________and balanced way, not to overstate the advantages of our_________. Because we're trying to develop. _________which are consistent across many different countries across Europe ... it's often a challenge ...