AUTHOR=Qin Xixian , Li Mengyao , Sun Xuna , Dong Peipei , Ji Xiaofei , Li Xiaoyan , Liu Jing TITLE=Clinical observational studies of potential participants’ current negative affect status for a clinical study of stem cell therapy for ischemic stroke: study protocol JOURNAL=Frontiers in Neurology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2025.1429846 DOI=10.3389/fneur.2025.1429846 ISSN=1664-2295