Tootfinder

Why does #DOAJ have abstracts for articles which are closed access (nonfreely licensed and paywalled)?
https://doaj.org/article/13b03a41fdac43c0b6772f0d7be22ccb (doi:10.101…

Brain-derived neurotrophic factor in mood disorders and antidepressant treatments – DOAJ
Levels of brain-derived neurotrophic factor (BDNF) are reduced in the brain and serum of depressed patients and at least the reduction in serum levels is...