Further to policy 4.3.2, the expense authority may receive assistance from staff to fulfill his/her responsibilities. However, the expense authority is accountable for expenditure approval, and approval of payment requisitions for direct invoices (i.e., vendor invoices or items not matched to a purchase order or contract using iProcurement).
Comorbidity: Addiction and Other Mental Illnesses. When two disorders or illnesses occur in the same person, simultaneously or sequentially, they are described as comorbid. Comorbidity also implies interactions between the illnesses that affect the course and prognosis of both.
An example of this would be the relationship between diabetes and hypertension. A person can have hypertension and not have diabetes, but someone with diabetes frequently has hypertension. Thus, hypertension is referred to as a common comorbidity of diabetes. Other comorbidities of diabetes are listed below.