1. Please visit: http://www.drugs.com/stats/top100/2013/sales (accessed 07.04.14).
2. Please visit: http://www.drugs.com/stats/top100/2011/q3/sales (accessed 07.04.14).
3. Please visit: http://en.wikipedia.org/wiki/Atorvastatin (accessed 07.04.14).
4. Green Chemistry, Theory and Practice;Anastas,1998
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