Comparative effects of clinic- and virtual reality-based McKenzie extension therapy in chronic non-specific low-back pain - Chidozie Emmanuel Mbada; Moses Oluwatosin Makinde; Adesola Christianah Odole; Olumide Olasunkanmi Dada; Olusola Ayanniyi; Ayomide Johnson Salami; Ishaya Peni Gambo (Termedia Publishing House, 2019)