A roentgenologist in the Bersohn and Bauman hospital, died.
A doctor from Lodz - a dermatologist. Works as a porter in the town hall.
A doctor working in the hospital in Jagiellonska Street in Warsaw.
This doctor offered a job in the hospital to Ber.
Braude, Juyta; Relacja; W Archiwum Yad Vashem (Testimony, Yad Vashem Archives)
Reicher, Edward W ostrym swietle dnia. Dziennik zydowskiego lekarza 1939-1945 (In Broad Daylight. A Diary of a Jewish Doctor 1939 - 1945)