The phrase "a stage itself" is correct and usable in written English.
It can be used to emphasize the importance or uniqueness of a particular stage in a process or event.
Example: "In the development of the project, we realized that a stage itself could determine the success of the entire initiative."
Alternatives: "the stage alone" or "the stage in question".
While this has not been completely refuted, evidence is limited [45, 47] and recent research has suggested that nocturnal attacks may be linked to the cycling between sleep stages, and not to a particular stage itself [10].
The importance of detection of the spread of memes at an early stage itself before they spread and become indistinguishable from the real ones was also highlighted in the paper.
The Raman sampling head was mounted on a vertical translation stage, itself mounted on a sliding rail fitted to a gantry that holds the head vertically over a single painting, or open bound volume, as illustrated in Fig. 2.
This is an important distinction; whilst CKD stage itself confers an increment of risk, a large proportion of the risk is associated with the rate of change of kidney function and/or the presence of proteinuria [ 41].
Later on, RL Grime's dark and twisted turn-up set was such a crowded clusterfuck that you couldn't even get a glimpse of the stage itself.
The stage itself was a raised platform, without a front curtain or a proscenium arch but with a permanent facade at the back.
Prerecorded scores by Cage and the composer David Behrman play periodically, and the stage itself offers a remarkable sight: a set of large, semi-transparent boxes painted with organic shapes that seem to float like fish in aquariums.
A 'Pedestrians This Way' sign directs spectators to the auditorium down a snow-covered pavement, past a video installation, but the stage itself is almost bare, the actors dressed as if for rehearsal.
After that opener the audience was led through the church and deposited in a tiny seating area (the stage itself), where curtains were pulled back to reveal a modest, linoleum-tiled space, littered with typical community-room objects: metal folding chairs and tables, a few balloons and crepe-paper streamers, a tray set up for drinks.
We enter the theatre to find that the stage itself is a theatre.
