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An exacting measurement--Mr. Harold Arase, Jerome, concentrates on his work in the laboratory of the Lankenau Hospital, Philadelphia.<lb/> Philadelphia, Pennsylvania.
[recto] An exacting measurement--Mr. Harold Arase, Jerome, concentrates on his work in the laboratory of the Lankenau Hospital, Philadelphia. ;  Philadelphia, Pennsylvania.
[verso] An exacting measurement--Mr. Harold Arase, Jerome, concentrates on his work in the laboratory of the Lankenau Hospital, Philadelphia. ;  Philadelphia, Pennsylvania.
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