#12. #7 AND #11	3,241	14 May 2020
#11. #8 OR #9 OR #10	57,269	14 May 2020
#10. Haematuria	8,697	14 May 2020
#9. hematuria	55,747	14 May 2020
#8. 'hematuria'/exp	49,550	14 May 2020
#7. #1 OR #2 OR #3 OR #4 OR #5 OR #6	32,055	14 May 2020
#6. berger AND disease	13,767	14 May 2020
#5. iga AND type AND nephritis	425	14 May 2020
#4. immunoglobulin AND a AND nephropathy	16,671	14 May 2020
#3. iga AND nephropathy	10,193	14 May 2020
#2. iga AND glomerulonephritis	5,731	14 May 2020
#1. 'immunoglobulin a nephropathy'/exp	11,360	14 May 2020