Assertion: d serine | /r/HasProperty | taken at different time points
Facets:
Source sentences:
text: d-serine, l-serine, and l-glutamate were identified simultaneously from samples of the aCSF taken at different time points using an LC-MS/MS system (1200 s, triplequad 6410, Agilent, Palo Alto, CA, USA) with electrospray ionization in the positive mode.