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. 2018 Jul 4;6(7):E865–E871. doi: 10.1055/a-0599-5886

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Fig. 2 — Open-pore polyurethane foam (oP) and open-pore double layer film (oF) stuck on with a needle. a View from above on the micro pores (mp) of the open-pore film (oF). b Cutting (scissors) a strip (str) of the film for construction of an OFD.