Source
- Dirk Collier (Ed.), Dr. Constant Janssen, Janssen Pharmaceutica, 1996
| Persondata | |
|---|---|
| Name | Janssen, Constant |
| Alternative names | |
| Short description | businessman, physician |
| Date of birth | 18 September 1895 |
| Place of birth | Vlimmeren, Belgium |
| Date of death | 15 April 1970 |
| Place of death | Antwerp, Belgium |
| This biographical article related to medicine is a stub. You can help Wikipedia by expanding it. |
| This business-related Belgian biographical article is a stub. You can help Wikipedia by expanding it. |
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