9Pedro de Noronha Pissarra. Changes in the business of culture.Nature Biotechnology, 2004, 22(11):1355 - 1356.
10From chrysalis to butterfly: how far has pharma come?. 2005,http ://www. imshealth. com/vgn/images/portal/cit-40000873/53/55/74033576SCRIP% 20rev-.pdf ( accessed October 20,2005).