Names. it's really ibd 1 and ibd 2. >> this dock has been diagnosing the diseases for 25 years. of he said some case the respond better to medicine and some buy tweaking the micro buy yom. >> to really be better at understanding and sorting out crohn as disease, ulcerative colitis, then better direct personal ea personalize our care and do a better job. >> how do you describe how well we understand crohn's disease, ultrativ colitis? where are we in understanding these diseases. >> somewhere between the first inning and ninth inning. our understanding of genetics is great but very shallow. it's...