TY  - GEN
AU  - Sánchez-Valverde,F
AU  - García Fuentes,M
TI  - [Rare diseases: medicine's challenge in the XXI Century]
SN  - 1137-6627
PY  - 2009///0202
KW  - Humans
KW  - Rare Diseases
N1  - Publication Type: English Abstract; Introductory Journal Article
ER  -