LIU, Yuqi. Pay Attention to Unpaid Caregivers: Balancing Health Behavior and Opportunity Cost. Highlights in Business, Economics and Management, [S. l.], v. 49, p. 126–130, 2025. DOI: 10.54097/11z98019. Disponível em: https://hbem.org/index.php/OJS/article/view/29. Acesso em: 26 may. 2026.