Cheng Y, Prusoff WH (1973). “Relationship between the inhibition constant (KI) and the concentration of inhibitor which causes 50 per cent inhibition (I50) of an enzymatic reaction”. Biochem. Pharmacol.22 (23): 3099–108. doi:10.1016/0006-2952(73)90196-2. PMID4202581.
Cheng Y, Prusoff WH (1973). “Relationship between the inhibition constant (KI) and the concentration of inhibitor which causes 50 per cent inhibition (I50) of an enzymatic reaction”. Biochem. Pharmacol.22 (23): 3099–108. doi:10.1016/0006-2952(73)90196-2. PMID4202581.