Randomised Controlled Trials a user's guide
Jadad, Alejandro R
Randomised Controlled Trials a user's guide - London BMJ Books 1998 - xxiv, 124 P.
0727912089
610.724 / J12
Randomised Controlled Trials a user's guide - London BMJ Books 1998 - xxiv, 124 P.
0727912089
610.724 / J12