TREATMENT END DATE? COLD TURKEY OR TAPERING OFF?

I met with my psychiatrist on Wednesday, after my 2nd treatment. He says that we will review the treatment at the end of 4 weeks. If necessary, we can add more sessions. Also, he doesn't like the idea of just finishing the treatments and going cold turkey. Although there is not yet any research for or against, he would like to taper off the treatments gradually. I agree.