A computer will
assign half of the people in the study to get 2 antibiotics and half of the people to get 1 antibiotic.You will have a 50/50 chance of getting either:
Beta-lactam + Aminoglycoside
example: ceftazidime + tobramycin
Beta-lactam
example: ceftazidime
Both treatments will be done the same way:
If you do not join the study: