TY  - RPRT
TI  - The Safety Net and preregistration posts.
AU  - D G Black
AU  - G E Swaffield
PY  - 1978
DO  - 10.1136/bmj.2.6152.1647-d
UR  - https://pubmed.ncbi.nlm.nih.gov/728774/
ID  - 728774
ER  -