Yakin Byoutou
English name: Night Shift Nurses
Genres: Hentai
Type: OVA, Episodes: 10
Aired: Dec 8, 2000 to Jan 30, 2004
Studio: AT-2
Source: Visual novel
Rating: Rx - Hentai
Synopsis:
On a forbidden hospital ward, the head doctor performs madly erotic experiments, stripping the nursing staff of their uniforms, inhibitions and self-control... until even he is shocked by what he uncovers!

(Source: AniDB)