A call for standardised age-disaggregated health data di Diaz, T, Strong, KL, Cao, B, Guthold, R, Moran, AC, Moller, A-B, Requejo, J, Sadana, R, Thiyagarajan, JA, Adebayo, E, Akwara, E, Amouzou, A, Aponte Varon, JJ, Azzopardi, PS, Boschi-Pinto, C, Carvajal, L, Chandra-Mouli, V, Crofts, S, Dastgiri, S, Dery, JS, Elnakib, S, Fagan, L, Jane Ferguson, B, Fitzner, J, Friedman, HS, Hagell, A, Jongstra, E, Kann, L, Chatterji, S, English, M, Glaziou, P, Hanson, C, Hosseinpoor, AR, Marsh, A, Morgan, AP, Munos, MK, Noor, A, Pavlin, BI, Pereira, R, Porth, TA, Schellenberg, J, Siddique, R, You, D, Vaz, LME, Banerjee, A