Serum eosinophil cationic protein measurements in the management of perennial and periodic asthma: a prospective study
F de Blay, A Purohit, R Stenger, P Gries, C Hamberger, B David, N Frossard, G Pauli
European Respiratory Journal 1998 11: 594-598; DOI: 10.1183/09031936.98.11030594