Fig. 1.

Schematic diagram of the outline of this study. Human blood and nasal mucosal tissue were maintained for 3 h at room temperature and 4 °C, respectively. Subsequently, serum was prepared and explant cultures were initiated. After 24 d, cultured cells were transported again for 3 h at 37 °C. Finally, the transported cell sheets we analyzed for quality and compared with non-transported cell sheets.