Are nurses (P) working in ER or ICU (I) compared to nurses working in other units (C) at higher risk of contracting the Coronavirus (O) over a 2-month period (T)?
Sample Solution
Are nurses (P) working in ER or ICU (I) compared to nurses working in other units (C) at higher risk of contracting the Coronavirus (O) over a 2-month period (T)?
Sample Solution