Filtering by: Creator Meyer, Charles Remove constraint Creator: Meyer, Charles Collection Historical Images In Medicine Remove constraint Collection: Historical Images In Medicine Subject Ballard, James F. (James Francis), 1878-1955 Remove constraint Subject: Ballard, James F. (James Francis), 1878-1955 Subject Stecher, Robert Morgan, 1896- Remove constraint Subject: Stecher, Robert Morgan, 1896- Year Unknown Remove constraint Year: Unknown