Vitamin D Supplementation in Episodic and Chronic Tension-type Headache
Condition: Chronic Tension-Type Headache Interventions: Dietary Supplement: Vitamin D; Other: Calcium Sponsor: Hospital de Especialidades, Centro Medico Nacional " La Raza " , Instituto Mexicano del Seguro Social Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials