[1] Data retrieval for this article was by Ernst & Young (Boston) and Riku Lähteenmäki,
[2] a freelance writer in Turku,undefined
[3] Finland. Laura DeFrancesco,undefined
[4] senior editor of Nature Biotechnology,undefined
[5] provided the analysis. John Hodgson is editor-at-large and Brady Huggett business editor at Nature Biotechnology.,undefined