The Lancet Infectious Diseases, 20(11), 1273-1280. Lancet Publishing Group Sikkema, R S, Pas, S D, Nieuwenhuijse, D F, O'Toole, Á, Verweij, J J, van der Linden, A, Chestakova, I, Schapendonk, C, Pronk, M, Lexmond, P, Bestebroer, T, Overmars, R J, van Nieuwkoop, S, van den Bijllaardt, W, Bentvelsen, R G, van Rijen, M M L, Buiting, A G M, van Oudheusden, A J G, Diederen, B M, Bergmans, A M C, van der Eijk, A, Molenkamp, R, Rambaut, A, Timen, A, Kluytmans, J A J W, Oude Munnink, B B, Kluytmans van den Bergh, M F Q & Koopmans, M P G 2020, ' COVID-19 in health-care workers in three hospitals in the south of the Netherlands : A cross-sectional study ', The Lancet Infectious Diseases, vol. 20, no. 11, pp. 1273-1280 . https://doi.org/10.1016/S1473-3099(20)30527-2 The Lancet. Infectious Diseases Lancet Infectious Diseases, 20(11), 1273-1280. Lancet Publishing Group The Lancet Infectious Diseases Sikkema, R S, Pas, S D, Nieuwenhuijse, D F, O'Toole, Á, Verweij, J J, van der Linden, A, Chestakova, I, Schapendonk, C, Pronk, M, Lexmond, P, Bestebroer, T, Overmars, R J, van Nieuwkoop, S, van den Bijllaardt, W, Bentvelsen, R G, van Rijen, M M L, Buiting, A G M, van Oudheusden, A J G, Diederen, B M, Bergmans, A M C, van der Eijk, A, Molenkamp, R, Rambaut, A, Timen, A, Kluytmans, J A J W, Oude Munnink, B B, Kluytmans van den Bergh, M F Q & Koopmans, M P G 2020, ' COVID-19 in health-care workers in three hospitals in the south of the Netherlands : a cross-sectional study ', The Lancet Infectious Diseases, vol. 20, no. 11, pp. 1273-1280 . https://doi.org/10.1016/S1473-3099(20)30527-2