Psychometric evidence of a perception scale about covid-19 vaccination process in Peruvian dentists: a preliminary validation. - Cayo-Rojas CF; Córdova-Limaylla N; Briceño-Vergel G; Ladera-Castañeda M; Cachay-Criado H; López-Gurreonero C; Cornejo-Pinto A; Cervantes-Ganoza L (BMC health services research, 2022)