R., V. K., & S., K. K. (2019). A comparative study of ultrasound and x-ray in detection, of fracture callus in tibial shaft fractures, treated by unreamed interlocking nailing. International Journal of Research in Orthopaedics, 5(3), 438–442. https://doi.org/10.18203/issn.2455-4510.IntJResOrthop20191507