Investigation on the effect of a Chinese herbal formula on intestinal flora and immune function based on spleen deficiency syndrome in patients with colorectal cancer after chemotherapy: Protocol for a randomized controlled trial

Interventions: Control group A:Chemotherapy + probiotics;Control group B:Chemotherapy + Chinese Medicine;Treatment group:Chemotherapy + probiotics + Chinese medicine;Negative control group:None
Primary outcome(s): Intestinal microbiota detection;TCM symptom score and efficacy evaluation
Study Design: Parallel