[Meta-synthesis].

Nursing science's body of knowledge is mainly composed of the results of qualitative studies which, since the 1970s, have contributed notably to improving understanding of patients' experiences. This abundant scientific literature enables reviews to be carried out with the aim of producing solid theories. Meta-synthesis is a methodology which was created for this purpose. The theories which it produces constitute reference frameworks for researchers wishing to develop innovative nursing procedures and to test them within the context of clinical studies.