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. 2014 Sep 30;9(9):e107952. doi: 10.1371/journal.pone.0107952

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© 2014 Sarker et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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SEM images of NHDF adherent on (a,b) alginate, (c,d) ADA70-GEL30, (e,f) ADA60-GEL40, (g,h) ADA50-GEL50, (i,j) ADA40-GEL60, and (k,l) ADA30-GEL70 after 4 days (left column) and 7 days (right column) of incubation. Black arrows and white arrows indicate filopodia and microvilli of cells, respectively.