Attitudes and skills in caring for family caregivers among undergraduate nursing students and influencing factors: A psychometric validation and cross-sectional European study. - Longhini J; Kabir ZN; Waldréus N; Konradsen H; Bove DG; Rodriguez AL; Calle MDC; De Lorenzo Urien E; Ambrosi E; Canzan F (Nurse education today, 2026)