Comparison of Mid-Infrared Handheld and Benchtop Spectrometers to Detect <i>Staphylococcus epidermidis</i> in Bone Grafts oleh Richard Lindtner, Alexander Wurm, Katrin Kugel, Julia Kühn, David Putzer, Rohit Arora, Débora Cristina Coraça-Huber, Philipp Zelger, Michael Schirmer, Jovan Badzoka, Christoph Kappacher, Christian Wolfgang Huck, Johannes Dominikus Pallua