Heilmann, E, Gregoriano, C, Annane, D, Reinhart, K, Bouadma, L, Wolff, M, Chastre, J, Luyt, C E, Tubach, F, Branche, A R, Briel, M, Christ-Crain, M, Welte, T, Corti, C, de Jong, E, Nijsten, M, de Lange, D W, van Oers, J A H, Beishuizen, A, Girbes, A R J, Deliberato, R O, Schroeder, S, Kristoffersen, K B, Layios, N, Damas, P, Lima, S S S, Nobre, V, Wei, L, Oliveira, C F, Shehabi, Y, Stolz, D, Tamm, M, Verduri, A, Wang, J X, Drevet, S, Gavazzi, G, Mueller, B & Schuetz, P 2021, ' Duration of antibiotic treatment using procalcitonin-guided treatment algorithms in older patients : a patient-level meta-analysis from randomized controlled trials ', Age and Ageing, vol. 50, no. 5, pp. 1546-1556 . https://doi.org/10.1093/ageing/afab078 Age and Ageing Heilmann, E, Gregoriano, C, Annane, D, Reinhart, K, Bouadma, L, Wolff, M, Chastre, J, Luyt, C-E, Tubach, F, Branche, A R, Briel, M, Christ-Crain, M, Welte, T, Corti, C, de Jong, E, Nijsten, M, de Lange, D W, van Oers, J A H, Beishuizen, A, Girbes, A R J, Deliberato, R O, Schroeder, S, Kristoffersen, K B, Layios, N, Damas, P, Lima, S S S, Nobre, V, Wei, L, Oliveira, C F, Shehabi, Y, Stolz, D, Tamm, M, Verduri, A, Wang, J-X, Drevet, S, Gavazzi, G, Mueller, B & Schuetz, P 2021, ' Duration of antibiotic treatment using procalcitonin-guided treatment algorithms in older patients : a patient-level meta-analysis from randomized controlled trials ', Age and Ageing, vol. 50, no. 5, pp. 1546-1556 . https://doi.org/10.1093/ageing/afab078