Additional file 2: of Effectiveness of chiropractic manipulation versus sham manipulation on recurrent headaches in children aged 7–14 years, Protocol for a randomized clinical trial Susanne Lynge Jan Hartvigsen Henrik Christensen Werner Vach Lise Hestbaek 10.6084/m9.figshare.9723779.v1 https://springernature.figshare.com/articles/journal_contribution/Additional_file_2_of_Effectiveness_of_chiropractic_manipulation_versus_sham_manipulation_on_recurrent_headaches_in_children_aged_7_14_years_Protocol_for_a_randomized_clinical_trial/9723779 Baseline questionnaire on headache and lifestyle (DOCX 19 kb) 2019-08-23 04:27:06 Chiropractic Manipulative therapy Manipulation Children Headache Sham Recurrent Placebo