Yes. So we actually have seen quite good performance of the biosimilar business. If I just look at end-market products, those were about $75 million in 2008 and we have roughly the same portfolio a few years later but expanded now to over 55 countries. The business was just under $350 million in sales last year, up about 22% to just under $100 million in Q1. We are seeing really strong performance with each of our three end market brands, which are number one, respectively and EPO, both for nephrology and oncology. Secondly, for G-CSF, which now is up to about a 24%, 25% share of the short-acting G-CSF market in Europe, which is on par with the Amgen's Neupogen and in human growth hormone, which is the largest biosimilar globally, should be well over $200 million brand for us this year and, notably, up to 18%, 19% share in the U.S. with six originators, including Pfizer, Merck-Serono, Eli Lilly, Novo Nordisk and Roche Genentech. So I think the commercial performance has been quite good. The issue is, of course, that there is a gap of patent expiries in between 2009 and 2014. There is very little in terms of what's coming off patent. I think as you get into more patent expiries looking out a few years, it starts to become a more exciting business building from just under $500 million or so in the course of as we look forward in the next year or two to a multibillion-dollar business. We feel good about the position we have. We have about a 53% market share in products that have been approved in the highly regulated markets of Europe, North America, Japan, and Australia. So we feel good about our momentum. In terms of our future pipeline, we feel our pipeline is unrivaled with the eight to 10 programs that we have, with a high share of those being monoclonal antibodies. To your last question, we plan on using whatever pathway makes the most sense for Novartis, be it the BLA pathway or the new biosimilar pathway, and we will make those decisions on a case-by-case basis.