Reference: These experts may have some valid points

Williams, Monnica T et al. “Myth of the pure obsessional type in obsessive-compulsive disorder.” Depression and anxiety vol. 28,6 (2011): 495-500. doi:10.1002/da.20820*

Available from:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3227121/

*Citation note. The citation show is as provided by the source.