Bruntink, M M, Groutars, Y M E, Schipper, I B, Breederveld, R S, Tuinebreijer, W E, Derksen, R J & PROTECT studygroup 2017, ' Nadroparin or fondaparinux versus no thromboprophylaxis in patients immobilised in a below-knee plaster cast (PROTECT) : A randomised controlled trial ', Injury, vol. 48, no. 4, pp. 936-940 . https://doi.org/10.1016/j.injury.2017.02.018 Injury, 48(4), 936-940 Injury, 48(4), 936-940. Elsevier Limited Injury-International Journal of the Care of the Injured, 48(4), 936-940. Elsevier Ltd.