Ken Kalling
- Medical immunology in Estonia: trends of development and achievements until the 1980s
- Gustav Piers v. Bunge and antialcohol Germans
- The fate of Estonian psychiatric patients during the German occupation (1941–1944)
- Institutionalisation of Estonian dermatovenerology before 1940
- Sovetization of Estonian medical societies
- Anti-alcohol movement and medical research in pre-war Estonia
- Eternal life and natural death