There was a follow-up to Rosenhan (1973). The whole study was revisited by Scribner (2001).
The present study is a replication of sorts, modified to suit the contemporary, postdeinstitutionalization state of mental health care. The findings suggest that a significant shift has occurred in mental health care since 1973. At the time of the original study by Rosenhan (1973), the troubling issue was the ease with which people could receive an unwarranted diagnosis and unnecessary treatment for a nonexistent mental disorder. In today's mental health care environment, the troubling issue is the difficulty involved in obtaining treatment that is warranted for conditions that are present.
Rosenhan, D. L. (1973). On being sane in insane places. Science, 179(4070), 250-258. DOI: 10.1126/science.179.4070.250
Scribner, C. M. (2001). Rosenhan revisited. Professional Psychology: Research and Practice, 32(2), 215. DOI: 10.1037/0735-7028.32.2.215