TY - JOUR A1 - Helleringer, S. A1 - Lau, S.W. A1 - Luhar, S. A1 - Banda, J. A1 - Lankoande, B. A1 - Tlhajoane, M. A1 - Reniers, G. T1 - Increased age heaping in mobile phone surveys conducted in low-income and middle-income countries Y1 - 2023 DO - 10.1177/23780231231158766 VL - 9 ER -