The details and current status of data requests submitted through the Data Request Help Desk page can be seen here.
reccurence of tumor after surgery
many tests tells such as hormonal imbalance that there can be pituitary tumor or any else brain tumor.
kindly provide any dataset in csv format related to brain tumor for research along with its attributes details.
A Department of Health and Human Services open data lead has been notified of your data request.
You may also explore health-related data here: http://www.healthdata.gov/