Patterns of collaboration along the biopharmaceutical innovation process

1) We used and purposefully adapted the criteria suggested by the EU (European Commission Recommendation, 2002) for classifying firms on the basis of their size.Specifically we classified a company as: (i) small-medium, if the number of workers is < 250 and the revenues 50 m; (ii) large, if the number of workers is > 250 and the revenues > 50 m.These criteria obviously do not apply to universities and research centres.