TY  - GEN
AU  - Halperin,M
AU  - Miettinen,O
TI  - Re: "estimability and estimation in case-referent studies"
SN  - 0002-9262
PY  - 1977///0630
KW  - Epidemiologic Methods
KW  - Mathematics
N1  - Publication Type: Letter
UR  - https://doi.org/10.1093/oxfordjournals.aje.a112409
ER  -