Multi-Observer Study on the Assessment of Pediatric Gonadal Tumors Using Higher Harmonic Generation Microscopy as Compared to Conventional Histology. - Spies S; Nazarian E; Bremmer F; Gonzalez IA; Lobo J; Reyes-Múgica M; Zambrano E; Hulsker CCC; Mavinkurve-Groothuis AMC; de Krijger RR; Groot ML (Cancers, 2025)