ORIGINAL RESEARCH
Drug-free treatments of tension headaches in school-age children
1 Pirogov Russian National Research Medical University, Moscow, Russia
2 Russian Medical Academy of Continuous Professional Education, Moscow
Correspondence should be addressed: Viktoria Polunina
ul. Ostrovityanova, d. 1, Moscow, Russia, 117997; moc.liamg@520tkiv
Contribution of the authors to this work: Polunina VV — data collection, analysis, and interpretation, drafting of a manuscript; Sergeenko EYu — analysis of literature, research planning; Yarustovskaya OV — editing of a manuscript; Polunin VS — statistical analysis.