The phrase "a second stage was" is correct and usable in written English.
It can be used when describing a process or sequence of events, particularly in contexts like research, development, or project management.
Example: "After the initial phase was completed, a second stage was initiated to further refine the results."
Alternatives: "the next phase was" or "a subsequent stage was".
Subsequently, a second stage was set up to answer issues which arose from the first set of results.
A second stage was to be opened if ⩾1/21 responses were observed in the first stage.
Due to the large population sizes of the selected camps, a second stage was used to randomly select administrative zones within the sampled IDP camps to act as individual clusters.
The insertion of a patellar button in a second stage was not considered as failure of the prosthesis according to the policy of the Register The secondary outcome was the incidence of main complications during hospitalization.
As some methods were more specifically developed to correct the analysis of the second stage results only, analysis restricted to cases where the trial proceeded to a second stage was also performed, and referred as conditional analysis.
Due to the large population sizes of the selected camps, a second stage was used to randomly select administrative zones within the sampled IDP camps as second stage units to act as individual clusters.
A second stage is the following enclosure smoke-filling period.
The Programme proposed that a second stage be the abolition of the exequatur "in other areas," and a third and final stage the abolition in all remaining areas.
A second stage is the exploratory research of the explanatory and parsimonious dimensions of the approximately circular organisation of the interest factors.
Since the optimal weights obtained in the first stage are non-unique, a second stage is introduced in order to limit the vector of weights.
In this case, a second stage is carried out, where a model of global precedence is proposed to account for mid-level properties of the HVS.
