From the Departments of *Radiology,
§Thoracic Surgery, and
∥Pathology, Ramón y Cajal University Hospital, Madrid, Spain.
The authors declare no conflict of interest.
No specific funding was received from any funding bodies in the public, commercial, or not-for-profit sectors to carry out the work described in this manuscript.
Correspondence: Luis Gorospe, Department of Radiology, Ramón y Cajal University Hospital, Ctra. de Colmenar Viejo Km 9.100, 28034 Madrid, Spain. E-mail: firstname.lastname@example.org.