Response to: Citlak A. Surgical and nonsurgical containment methods for patients with Legg-Calvé-Perthes disease of the onset ages between 6.0 and 8.0 years provided similar congruency of the hip joint
J Pediatr Orthop B. 2020 Nov;29(6):618-619.
doi: 10.1097/BPB.0000000000000737.