TY  - JOUR 
T1  - Polymorphism in CYP17, GSTM1 and the progesterone receptor genes and its relationship with mammographic density
JO  - Brazilian Journal of Medical and Biological Research
A1  - Chambo, D.
A1  - Kemp, C.
A1  - Costa, A.M.M.
A1  - Souza, N.C.N.
A1  - Guerreiro da Silva, I.D.C.
SN  - 0100-879X
UL  - 10.1590/S0100-879X2009000400003
VL  - 42 
Y1  - 2009
PB  - Brasil 
ER  -