title: Letter to the editor: Knosp Grades 2-3 nonfunctioning pituitary adenomas.
authors: Université de Lausanne, Switzerland; and 
authors: Mahmoud
authors: M
authors: Messerer
authors: Giulia
authors: G
authors: Cossu
authors: Roy Thomas
authors: RT
authors: Daniel
authors: Emmanuel
authors: E
authors: Jouanneau
mesh_terms: D000236:Adenoma / Q000601:surgery*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008853:Microscopy / Q000379:methods*; D019635:Neurosurgical Procedures / Q000379:methods*; D010911:Pituitary Neoplasms / Q000601:surgery*; D012720:Severity of Illness Index