{Reference Type}: Letter {Title}: In Reply to the Letter to the Editor Regarding 'Non-Union After Multiple Lumbar Fusion Surgeries in a Patient With Facioscapulohumeral Muscular Dystrophy: A Case Report and Review of the Literature'. {Author}: Maurer R;Reiter GT; {Journal}: World Neurosurg {Volume}: 141 {Issue}: 0 {Year}: 09 2020 {Factor}: 2.21 {DOI}: 10.1016/j.wneu.2020.06.063 {Abstract}: