R$($Doctor#$,$ patient #$,$ Date, Diagnosis, TreatmentCode, Cost$)$

One record scheme describes a patient's visit at the doctor, including the treatment cost.

Assume that the doctor is capable to set up proper diagnosis for each patient's visit.

Assume the cost is associated to the treatment independently from the patient.

List all the non$-$trivial functional dependencies which are not from the primary key

Is this scheme $2NF?$ If not normalize it to $2NF!$

Decide that it needed to be normalized into $3NF!$ If yes, then perform the normalization.