Dear researchers, I am new to network meta-analysis and mostly self-learned therefore forgive me if my question sounds imprudent. I am planning to conduct a research on local adjuncts to treat a certain disease and found studies that has local and systemic adjuncts as parallel treatment arms against control.
Do I include these studies by taking only the local and control arms, removing the systemic arm OR do I exclude them altogether as they have systemic interventions as a treatment arm? I only plan to include local adjuncts and not systemic adjuncts. Thank you for your guidance.