Significance of ectopic intrathyroidal thymic tissue detected on ultrasound in different paediatric age groups: a proposed classification to guide investigation and management. - Jeffery, Hannah; Bosch, Karen D.; Brain, Caroline; Kurzawinski, Tom; Beale, Tim; Kowa, Xin-Ying; Aziz, Tarek Abdel (European Journal of Pediatrics, 2025)