Concurrent Validity and Reliability of Manual Versus Specific Device Transcostal Measurements for Breathing Diaphragm Thickness by Ultrasonography in Lumbopelvic Pain Athletes. - Daniel Marugán-Rubio; Jose L. Chicharro; Ricardo Becerro-de-Bengoa-Vallejo; Marta Elena Losa-Iglesias; David Rodríguez-Sanz; Davinia Vicente-Campos; Gabriel J. Dávila-Sánchez; César Calvo-Lobo (Sensors, 2021)