Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Attachment of MSC on (a) COL1 and (b) OPN gradient after 5 h. Reprinted with permission from ref (291). Copyright 2019 WILEY-VCH. (B) Cell morphology on (a) OD–AA and (b) AA–DG gradient. Quantification for cell number after (c) 1 day and (d) 6 days. Reprinted with permission from ref (231). Copyright 2015 Elsevier, Ltd.
