TY  - BOOK
AU  - Altman,Douglas G.
TI  - Practical statistics for medical research
SN  - 0-412-27630-5
U1  - 519.5 20
PY  - 1991///
CY  - London
PB  - Chapman and Hall
KW  - Medical research
KW  - Statistical methods
KW  - Statistical mathematics
KW  - Estadística médica
ER  -