Effect of dose interval of periosteal and intraarticular electrical dry needling boosters on pain and disability in patients with knee osteoarthritis: a multi-center randomized clinical trial. - Dunning, James; Young, Ian; Taylor, Norman; Mourad, Firas; Bliton, Paul; Butts, Raymond; Escaloni, James; Gorby, Patrick; Varghese, Rejoy; Maselli, Filippo; Fernández-de-Las-Peñas, César (Physiotherapy Theory & Practice, 2026)