TY  - RPRT
TI  - Drop-outs from clinical trials.
AU  - W H Weston-Davies
PY  - 1987
DO  - 10.1016/s0140-6736(87)91581-9
UR  - https://pubmed.ncbi.nlm.nih.gov/2890049/
ID  - 2890049
ER  -