ConceptioArchiveNCBI PubMed Central
NCBI PubMed Centralopen access

Epidemiology of primary headache and lifestyle factors among children and adolescents: a regional school-based study in China.

Lu G et al. · ncbi_pmc
NCBI PubMed Central · Papers · License: Open Access
Open Source ↗Direct PDF ↓
distributed systems architecture

Checking your browser before accessing pmc.ncbi.nlm.nih.gov ... Click here if you are not automatically redirected after 5 seconds.

Record · ID 13668 · SHA-256 bc9d43abd2455983
Conceptio Open Knowledge Archive — every document is proof-bundled with source, license, and retrieval metadata.