Systematic does not necessarily mean comprehensive.
Adams
C E
CE
Thornley
B
B
Joy
C
C
D001927:Brain Diseases / Q000175:diagnosis*; D006801:Humans; D016247:Information Storage and Retrieval; D016239:MEDLINE; D008279:Magnetic Resonance Imaging; D012559:Schizophrenia / Q000473:pathology*; D014481:United States