TY - GEN AU - Altman,D G AU - Bland,J M TI - Statistics notes. Treatment allocation in controlled trials: why randomise? SN - 0959-8138 PY - 1999///0623 KW - Patient Selection KW - Randomized Controlled Trials as Topic KW - methods N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1136/bmj.318.7192.1209 ER -