The library of the Faculty for Medicine CHUV is the most important library in the cantonal hospital in Lausanne (canton Waadt). CHUV is the acronym of Centre hospitalier universitaire vaudois. The stamp itself contains only the adress, but nothing more.
This cancelled stamp seems to be an older version of the stamp before. The difference here is in the fact that the stamp does not contain an address, but the mention of a further education program for nurses. However, again, this stamp is rather textheavy.