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\bibitem{Parrilla_etal2023} {\textquotedblleft}\textit{3D-printed microneedle-based potentiometric sensor for pH monitoring in skin interstitial fluid}{\textquotedblright}. Parrilla M, Vanhooydonck A, Johns M, Watts R, De Wael K, Sensors and actuators : B : chemical \textbf{378}, 133159 (2023).   http://doi.org/10.1016/J.SNB.2022.133159

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