Conflict of interest disclosures are given in the Appendix.
Correspondence and requests for reprints to Professor Alberto Zanchetti, Centro di Fisiologia Clinica e Ipertensione, Via F. Sforza, 35, 20122 Milano, Italy. Tel: +39 0250320484; fax: +39 0255187506; e-mail: firstname.lastname@example.org
Received 4 April 2003 Accepted 4 April 2003
*Endorsed by the International Society of Hypertension
**Members of the Guidelines Committee and the Writing Committee are listed in the Appendix.