Herrera Hernández EG, Romero Rodríguez MG. Benefits of the Williams protocol in the treatment of lower back pain in older adults. AD [Internet]. 2026Mar.26 [cited 2026Mar.31];9(1):116-34. Available from: https://cienciadigital.org/revistacienciadigital2/index.php/AnatomiaDigital/article/view/3628