TY  - RPRT
TI  - Headache recurrence after subcutaneous sumatriptan.
AU  - C Dahlöf
PY  - 1992
DO  - 10.1016/0140-6736(92)90108-f
UR  - https://pubmed.ncbi.nlm.nih.gov/1346679/
ID  - 1346679
ER  -