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3D view of microfluidic four-organ-chip device by Maschmeyer et al. [7], (footprint: 76 mm × 25 mm; height: 3 mm). Intestine (1), liver (2), skin (3), and kidney (4) tissue culture compartments are interconnected by a surrogate blood flow circuit (pink) and an excretory flow circuit (yellow). Reproduced from [7] with permission of the Royal Society of Chemistry. All rights reserved.
