3228966 OSI-R Occupational Stress Inventory Revised Edition 28 3228969 OSI-R occupational stress inventory 9 3228970 OSI-R Occupational Stress Scale 2 3228968 OSI-R occupational stress indicator question-naire 1 3228971 OSI-R Occupational Stress Questionnaire 1 3228972 OSI-R Osipow Stress Inventory-Revised 1