As many anthropological and sociological studies have shown, there are multiple factors contributing to different health-care seeking patterns. Many times, tradicional/ alternative/ complementary medicine is sought precisely because people are not happy with biomedical responses to their situation or considers it more harmful and less effective - depending on the situations - than other approaches to their health problems. And this is not based on 'beliefs', but on their actual experiences.
I do not think we can achieve any consensus and improve interactions between health-care users, traditional medicine (or others) and the biomedical system, if we continue using a vertical approach. Otherwise, we are not talking about integration but about control. And I think it is important to acknowledge this in the first place, as it sets up the approach we are taking.
I definitely do consider that more research is needed. Yet, such studies, I believe, would be more fruitful if they included multidisciplinary teams well represented by all parts - in all stages of the research process.