[1] Department of Internal Medicine and Rehabilitation,
[2] Oskarshamn Hospital,undefined
[3] 572 28 Oskarshamn,undefined
[4] Sweden e-mail: joep@ltkalmar.se Tel.: +46-491-782000; Fax: +46-491-782643,undefined
[5] State Hospital for Cardiology,undefined
[6] Balatonfüred,undefined
[7] Hungary,undefined