TY  - RPRT
TI  - Relaxation training in school classes does not reduce headache complaints.
AU  - J Passchier
AU  - M B van den Bree
AU  - H H Emmen
AU  - S O Osterhaus
AU  - J F Orlebeke
AU  - F Verhage
PY  - 1990
DO  - 10.1111/j.1526-4610.1990.hed3010660.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2272818/
ID  - 2272818
ER  -