"undergone revisions" is correct and usable in written English.
You can use it when referring to something that has been changed or revised over time. For example: "The company's policies have undergone revisions in the past year to better suit their new goal of increased profits."
Since then, the book, published by Stanford University Press, has periodically undergone revisions.
Following its critical trouncing in February and the abrupt exit of Julie Taymor, the show's original director, the webslinger has undergone revisions (and a three-week hiatus) to make this troubled "rock circus drama" fly.
Officials say it has already undergone revisions, but is a snapshot of an important, but preliminary stage, in a comprehensive process that translates broad ideas into the detailed, step-by-step blueprint for combat operations that the Pentagon defines as a "war plan".
Mr. Carlsen said the audit, which was conducted during April and May 1999 and updated after the June 1999 conference, was being released now because it had undergone revisions and was only recently completed after the comptroller's office received responses from the district and the central board.
Originally approved in 1998, the plan has twice undergone revisions to ensure that this valuable land continues to meet the needs of the entire Costa Mesa community.
The Kern framework has undergone revisions to accommodate for the changing environment of medical education in North America, such as accreditation, a focus on core competencies (ACGME, RCPSC) and the growing use of information technology by institutions and learners.
The satisfaction level of patients who had not undergone revision of the implant was also recorded.
This patient had undergone revision of his IIPCS due to dislocation of the catheter tip and infection of the port chamber two days before.
At six years, the probability of survival for patients who have not undergone revision is 0.044 0.029 to 0.0600) higher in those undergoing Birmingham hip resurfacing rather than cemented procedures.
These outliers are probably patients who may be at risk of future loosening (and one of these has already undergone revision).
The reasons for dropping out were that seven patients had died, one patient had moved abroad, four patients had undergone revision and did not want to continue, five patients had other operations or physical problems, one patient did not go on to operation (heart problem), and 16 simply did not want to continue with the study.
