I assumed that surgeries where a type of specialized service but treatment was just a general term, i put treatment as an alias for both services and surgeries

Are We allowed to create additional attributes, that are not listed in the project worksheet

lots of the "questions your model should be able to answer" become impossible to answer if forign keys aren't used in the dictionary EG Who has booked the most appointments? without a forign key for the patient that booked it, how can we answer this...

Is there an alternative time we have to attend our database workshop that should be on Monday, as next Monday is a public holiday