Caroline Eyles RS Hom, M.A. Complementary Medicine Research Unit Primary Medical Care School of Medicine University of Southampton Aldermoor Health Center Aldermoor Close Southampton Hampshire SO16 5ST United Kingdom   Telephone:    +44(0)23 8024 1072 Fax:              +44(0)23 8070 1125 Email:            C.G.Eyles@soton.ac.uk   If you would like to take part in this study, require further information or a copy of the practitioner's information sheet please contact Caroline Eyles.