TY  - RPRT
TI  - Author's reply.
AU  - Andrew R Ness
AU  - Stephen J Frankel
AU  - David J Gunnell
AU  - George Davey Smith
PY  - 2002
DO  - 10.1046/j.1473-2165.2002.00020_3.x
UR  - https://pubmed.ncbi.nlm.nih.gov/17147528/
ID  - 17147528
ER  -