TY  - GEN
AU  - Leira,R
TI  - [Epidemiological and etiological data on cluster headache]
SN  - 0210-0010
PY  - 1996///0223
KW  - Adolescent
KW  - Adult
KW  - Child
KW  - Child, Preschool
KW  - Cluster Headache
KW  - epidemiology
KW  - Female
KW  - Humans
KW  - Infant
KW  - Male
KW  - Middle Aged
KW  - Racial Groups
KW  - Sex Factors
N1  - Publication Type: Comparative Study; Journal Article; Review
ER  -