Mshamu, Salum, Peerawaranun, Pimnara, Kahabuka, Catherine, Deen, Jacqueline, Tusting, Lucy, Lindsay, Steve W., Knudsen, Jakob, Mukaka, Mavuto, von Seidlein, Lorenz, "Old age is associated with decreased wealth in rural villages in Mtwara, Tanzania: findings from a cross‐sectional survey", Tropical Medicine and International Health, 2020