1 | (JAK Kinases or janus kinases or JAK Kinase or janus kinase or JAK2 Protein Tyrosine Kinase or JAK 2 Protein Tyrosine Kinase or JAK-2 Protein Tyrosine Kinase or v617fjak2 or v617f or Janus Kinase 2).mp. [mp=title, abstract, heading word, drug trade name, original title, device manufacturer, drug manufacturer, device trade name, keyword heading word, floating subheading word, candidate term word] | 54278 |
2 | exp Blood Donation/ or (blood donor or blood donors or donor, blood or donors, blood).mp. or Blood Donation/ or exp Blood Donors/ | 55355 |
3 | (erythrocytoses or erythrocytosis or polycythemia or polycythemias).mp. or Hematocrit/ or exp Blood Cell Count/ or exp Erythrocyte Indices/ | 485352 |
4 | 1 or 3 | 531816 |
5 | 2 and 4 | 2996 |