Intravenous pulse dose of methyl-prednison in 13 patients (12.3%) who were considered as steroid resistant fluctuated from 5mg / kg in 6 patients (46.2%) to 5 - 10mg / kg in 1 patient (7.7%) or 10 - 20mg / kg in 3 patients (23.1%), or 20 - 30mg / kg in 2 patients (15.4%) up to >30mg / kg in 1 patient.