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Revisiting systematic geographical variations in tonsils surgery in children in the Spanish National Health System: spatiotemporal ecological study on hospital administrative data
Eusebio Castaño-Riera, Manuel Ridao, Julian Librero, Natalia Martínez-Lizaga, Micaela Comendeiro-Maaløe, Ester Angulo-Pueyo, Salvador Peiro, Enrique Bernal-Delgado. Revisiting systematic geographical variations in tonsils surgery in children in the Spanish National Health System: spatiotemporal ecological study on hospital administrative data BMJ Open 2022;12:e064009