hepatology - liver, cardiology - ?

HEART
List of words for the clue hepatology - liver, cardiology - ? from the crossword:
EKGS TEETH STOMATOLOGY NEUROLOGY BRAIN PATE EKG ORGAN FOIE BILE OIL SPECIALTIES MEDICINE ECG AORTAS AORTA ANGIO IRON AMI
WordClue
GUMThe flesh around the teeth
OILcod-liver or mineral
RATEof exchange or heart
BRAINhepatology - liver, neurology - ?
LIVERcardiology - heart, hepatology - ?
MEDALPurple Heart
TEETHhepatology - liver, stomatology - ?
ATRIUMpart of heart
BOWELScore, heart
BRAVERYheart
DARKNESSHeart of ... (Conrad)
HEPATITISinflammation of the liver tissue
NEUROLOGYliver - hepatology, brain - ?
VENTRICLEpart of heart
CARDIOLOGYliver - hepatology, heart - ?
HEPATOLOGYheart - cardiology, liver - ?
PERICARDIUMpart of heart
STOMATOLOGYliver - hepatology, teeth - ?
DISEASEhepatitis or measles
BRAINhepatology - liver, neurology - ?