- umea universitet, kardiologi20
- biomed central19
- hogskolan dalarna15
- oxford university press / usa15
- umea universitet, institutionen for omvardnad15
- aarhus univ, dk-8000 aarhus c, denmark.12
- acad sinica, taipei, taiwan.12
- african populat & hlth res ctr, nairobi, kenya.12
- ain shams univ, cairo, egypt.12