Dario A, Ferreira M, Refshauge K, Romera R, Suarez A, Hopper J, Ordanana J, Ferreria P. Are obesity and body fat distribution associated with low back pain in women? A population-based study of 1177 Spanish twins. European Spine Journal, In Press, Acceptance date 11th March, 2015.

Pinheiro M, Ferreira M, Refshauge K, Colodro-Conde L, Carrillo E, Hopper J, Ordanana J, Ferreira P. Genetics and the environment affect the relationship between depression and low back pain: A co-twin control study of Spanish twins. Pain, 2015;156(3):496-503 http://www.ncbi.nlm.nih.gov/pubmed/25679471

Dario A, Ferreria M, Ordanana K, Lima T, Noronha M, Ordonana J, Ferreira P. The relationship between obesity, low back pain and lumbar disc degeneration when genetics and the environment are considered: a systematic review of twin studies. Spine Journal, In Press, Data de Aceite, 2nd of February, 2015. http://www.ncbi.nlm.nih.gov/pubmed/25661432

Junqueira DR, Ferreira ML, Refshauge K, Maher CG, Hopper JL, Hancock M, Carvalho MG, Ferreira PH. Heritability and lifestyle factors in chronic low back pain: Results of the Australian Twin Low Back Pain Study (The AUTBACK study). Eur J Pain. 2014 Nov;18(10):1410-8. doi: 10.1002/ejp.506. http://www.ncbi.nlm.nih.gov/pubmed/24733726

Hubscher M, Ferreira ML, Junqueira DR, Refshauge KM, Maher CG, Hopper JL, Ferreira PH. Heavy domestic, but not recreational, physical activity is associated with low back pain: Australian Twin low BACK pain (AUTBACK) study. Eur Spine J. 2014 Oct;23(10):2083-9. doi: 10.1007/s00586-014-3258-2. http://www.ncbi.nlm.nih.gov/pubmed/24619607

Oliveira VC, Ferreira ML, Refshauge KM, Maher CG, Griffin AR, Hopper JL, Ferreira PH. Risk factors for low back pain: insights from a novel case-control twin study. Spine J. 2014 Jul 4. pii: S1529-9430(14)00652-4. doi: 10.1016/j.spinee.2014.06.021. http://www.ncbi.nlm.nih.gov/pubmed/23335362