<Tr> <Td> Ca </Td> <Td> calcium carcinoma cancer </Td> </Tr> <Tr> <Td> CAA </Td> <Td> coronary artery aneurysm </Td> </Tr> <Tr> <Td> c / b </Td> <Td> complicated by </Td> </Tr> <Tr> <Td> CABG </Td> <Td> coronary artery bypass graft (pronounced "cabbage") </Td> </Tr>

What does a line with a c under it mean