I was re-reading the "Linkage" collection (I love Uso Kurata's stories) and while reading the "Linkage" story proper, I found myself thinking back of the "El Cazador de la Bruja" anime after a few pages. It was the whole "human-made lifeform" thing I suppose, and the girl reminded me of Ellis. A few pages later, the Ellis-like girl gets named "El". Okay...
A few pages afterward, we learn that the doctor is called "Rozenberg". I'm kind of wondering if Rozenberg is a common name in anime/manga (never seen it anywhere else personally) or if it's indeed an El Cazador reference. No, it's not something important, but I'm kind of curious :)