TY  - RPRT
TI  - Changes in reported pain from tension headaches.
AU  - H Fichtler
AU  - R R Zimmermann
PY  - 1973
DO  - 10.2466/pms.1973.36.3.712
UR  - https://pubmed.ncbi.nlm.nih.gov/4704309/
ID  - 4704309
ER  -