Fig. 1
From: The preclinical and clinical progress of cell sheet engineering in regenerative medicine
Schematic diagram of cell delivery methods in cell therapy (drawn by photoshop). A Three main cell delivery approaches are used in cell therapy. Some of the icons in this section are from AlexLMX/Getty Creative (https://www.vcg.com/creative/1199996796) and comotion_design|comotion_design/Getty Creative (https://www.vcg.com/creative/1002505480) and have already had copyright permission. B The sketch of cell sheets