Hill NL, Bratlee-Whitaker E, Sillner A, Brautigam L, Mogle J. Help-seeking for cognitive problems in older adults without dementia: a systematic review. Int J Nurs Stud Adv. 2021 Nov;3. doi: 10.1016/j.ijnsa.2021.100050
Cropper ML, Haile M, Lampietti J, Poulos C, Whittington D. The demand for a malaria vaccine: evidence from Ethiopia. J Dev Econ. 2004 Oct 1;75(1):303-18.