Probiotics may leads to lower any diarrhoea compared with placebo (low certainty).
It is very uncertain whether probiotics changes any diarrhoea compared with other active treatment (very low certainty).
It is very uncertain whether adverse events with anti‐gram‐positive antibiotics changes any adverse events compared with placebo (very low certainty).
It is very uncertain whether the intervention changes number of participants who experienced any adverse effects related… (very low certainty).
It is very uncertain whether early discontinuation of antibiotic treatment changes any bacteraemia compared with treatment until neutropenia resolution (very low certainty).
The intervention showed no clear difference in number of participants who received additional medical consultant… (low certainty).