Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Anti-tobacco movement in Nazi Germany:

"

Smoking was also banned not only in health care institutions, but also in several public offices and in rest homes.[4] Midwives were restricted from smoking while on duty. Smoking was also outlawed in bomb shelters; however, some shelters had separate rooms for smoking.[4] In 1939, the Nazi Party outlawed smoking in all of its offices premises, and Heinrich Himmler, the then chief of the Schutzstaffel (SS), restricted police personnel from smoking while they were on duty.[2] In 1938, the Reichspost imposed a ban on smoking.[4]