Media type: E-Article Title: Risk factors for low back pain among the elementary school students, using penalized logistic regression, Iran Contributor: Rezapur-Shahkolai, Forouzan; Gheysvandi, Elham; Tapak, Leili; Dianat, Iman; Karimi-Shahanjarini, Akram; Heidarimoghadam, Rashid imprint: Korean Society of Epidemiology, 2020 Published in: Epidemiology and Health (2020), Seite e2020039 Language: English DOI: 10.4178/epih.e2020039 ISSN: 2092-7193 Keywords: General Medicine Origination: Footnote: Access State: Open Access