This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Petr Borisovich Gannushkin c. . en Petr Borisovich Gannushkin pl Piotr Borisowicz Gannuszkin ru Portrts hervorragender Psychiater Psychiatrischneurologische Wochenschrift anonymous before public domain due to its age Psychiatrists from Russia PDold
Page 2023 Free-images.com. All images are Public Domain