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Epithelium cell growth on a fibrin surface over 7 day culture for bioprinted samples as well as for manually dispensed cells (a, b). Cell spreading is more efficient for bioprinting method when smaller number of cells is applied (6 × 103 and 1.2 × 104, #p = 0.0403, ##p = 0.0373, $p = 0.0251, *p = 0.0243, n = 3). Higher initial cell number (2.4 × 104) led to similar results for both manual and bioprinting methods (not significant)(c, d).
