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.
The presence of comorbidities can also make disease management and treatment more complicated and more expensive. When arthritis is a comorbidity, particularly with diabetes 3 heart disease, 4 and obesity 5 it may impede efforts to be more physically active, which is an important part of disease management.