Ullveien 14 NO 0791 Oslo Norway Tel: 47 22136500 (16, direct) Fax: 47 22136505 E-mail: k.h.carlsen@medisin.uio.no G.W. Canonica Allergy and Respiratory Diseases Dept of Internal Medicine University of Genova Pad. Maragliano, Largo Rosanna Benzi 10 16132 Genova Italy Tel: 39 0103538931 Fax: 39 0103538904 E-mail: canonica@unige.it J. Cummiskey Suite 35 Blackrock Clinic Rock Road Blackrock County Dublin Ireland Tel: 353 12064256 Fax: 353 12783018 E-mail: joecummiskey@eircom.net L. Delgado Servic ¸o de Imunologia Faculdade de Medicina da Universidade do Porto Hospital S. Joa˜o PT-4200-319 Porto Portugal Tel: 351 225020674 Fax: 351 225510119 E-mail: ldelgado@med.up.it S.R. Del Giacco Medicina 2 Policlinico Univer. di Cagliari presidio di Monserrato Monserrato Cagliari, IT-09042 Italy. Tel: 39 070510289 Fax: 39 07060286227 E-mail: delgiac@tiscali.it F. Drobnic Head Sports Physiology Dept Olympic Training Center CAR Alcalde Barnils 3-5 08173 Sant Cugat del Valles 106