TY  - JOUR 
T1  - Epidemiological and functional implications of molecular variants of human papillomavirus
JO  - Brazilian Journal of Medical and Biological Research
A1  - Sichero, L.
A1  - Villa, L.L.
SN  - 0100-879X
UL  - 10.1590/S0100-879X2006000600002
VL  - 39 
Y1  - 2006
PB  - Brasil 
ER  -