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| Immigration and Refugee Protection Act (Закон об иммиграции и защите беженцев, Канада azu) | |||
| International Radiation Protection Association; International Retinitis Pigmentosa Association | |||
| International Racing Press Association | |||
| individual risk of death per annum (MichaelBurov) | |||
| individual risk per annum (of fatalities due to process operations); Individual Risk Per Annum | |||