APA (7th ed.) Citation

Hajek, A., Saum, K., Brenner, H., & Haefeli, W. E. (2018). Frailty and healthcare costs: Longitudinal results of a prospective cohort study. Age & ageing, 47(2), . https://doi.org/10.1093/ageing/afx157

Chicago Style (17th ed.) Citation

Hajek, André, Kai-Uwe Saum, Hermann Brenner, and Walter E. Haefeli. "Frailty and Healthcare Costs: Longitudinal Results of a Prospective Cohort Study." Age & Ageing 47, no. 2 (2018). https://doi.org/10.1093/ageing/afx157.

MLA (9th ed.) Citation

Hajek, André, et al. "Frailty and Healthcare Costs: Longitudinal Results of a Prospective Cohort Study." Age & Ageing, vol. 47, no. 2, 2018, https://doi.org/10.1093/ageing/afx157.