Create a bibliography of four articles. Can be the same topic but 4 different

Create a bibliography of four articles. Can be the same topic but 4 different articles that address:
Issues of increased healthcare demands for vulnerable populations.
How the nursing shortage will impact healthcare demands of the vulnerable populations.
How can nurse leaders approach  nursing care that involves the care of the Geriatric Patient.
The importance of interprofessional collaboration to address the needs of vulnerable popula