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Machhin D., Day S. & Green S. (2006). Textbook of Clinical Trials. : John Wiley & Sons Ltd.
Machhin David, Day Simon and Green Sylvan. 2006. Textbook of Clinical Trials. : John Wiley & Sons Ltd.
Machhin D., Day S. and Green S. (2006). Textbook of Clinical Trials. : John Wiley & Sons Ltd.
Machhin David, Day Simon and Green Sylvan. Textbook of Clinical Trials. : John Wiley & Sons Ltd. 2006.