teeth - stomatology, brain - ?

NEUROLOGY
List of words for the clue teeth - stomatology, brain - ? from the crossword:
LIVER HEPATOLOGY HEART CARDIOLOGY EEG LOBE CPU COGS GNASH PEA EEGS ENIAC IDEA FANGS SAW GAP PIA MOLARS HENS
WordClue
GUMThe flesh around the teeth
OILcod-liver or mineral
HEADmind, brain
MINDbrain
STEMbrain or onion
BRAINstomatology - teeth, neurology - ?
HARNSbrain
HEARTstomatology - teeth, cardiology - ?
LIVERstomatology - teeth, hepatology - ?
TEETHneurology - brain, stomatology - ?
HELMETbrain bucket
REASONmind, brain
HEPATITISinflammation of the liver tissue
CARDIOLOGYteeth - stomatology, heart - ?
CONCUSSIONtraumatic brain injury
HEPATOLOGYteeth - stomatology, liver - ?
HIPPOCAMPUSpart of brain
STOMATOLOGYbrain - neurology, teeth - ?
ENCEPHALITISInflammation of the brain
HIPPIEteenager who imitated the beatniks
CARDIOLOGYteeth - stomatology, heart - ?