[1] Karolinska Inst, Dept Global Publ Hlth, Tomtebodavagen 18a, S-17177 Stockholm, Sweden
[2] Swiss Trop & Publ Hlth Inst, Kreuzstr 2, CH-4123 Allschwil, Switzerland
[3] Univ Basel, Peterspl 1, CH-4001 Basel, Switzerland
[4] Univ Geneva, Fac Med, Geneva Ctr Humanitarian Studies, 28 Blvd Pont dArve, CH-1205 Geneva, Switzerland
[5] Lund Univ, Dept Clin Sci Malmo, Jan Waldenstroms Gata 35, S-21428 Malmo, Sweden