Despite the increasing popularity and use of complementary practice, it is difficult to assess its effectiveness. Lack of research - and lack of agreement on research methods - has led to criticism from branches of conventional medicine. The King’s Fund set up an advisory group, chaired by Professor Dame Carol Black, to consider how to develop and apply a robust evidence base for complementary practice. The group drew on the experience of a wide range of academics, researchers, practitioners and funders and have published this report on their findings. (The King’s Fund - publications)