TY  - RPRT
TI  - The preregistration year.
AU  - M Smithies
AU  - I Rubin
PY  - 1978
DO  - 10.1136/bmj.2.6129.59-d
UR  - https://pubmed.ncbi.nlm.nih.gov/678821/
ID  - 678821
ER  -