Famed neurosurgeon and 2016 Republican presidential candidate Ben Carson, who was among the many critics who recently called attention to the graphic Planned Parenthood videos, was forced to respond to reports that he himself used fetal tissue for medical research more than 20 years ago.

Carson was asked about the revelation but dismissed reporters’ questions and referred to the reports as “desperate,” The Washington Post reported.

Dr. Jen Gunter, with the healthcare provider Kaiser Permanente, recently uncovered a paper Carson co-authored in 1992, in which he and other doctors said they used “human choroid plexus ependyma and nasal mucosa from two fetuses aborted in the ninth and 17th week of gestation,” an admission that now appears in stark contrast to the position Carson has taken as a presidential candidate.

Read the article “Ben Carson Responds to Report He Used Aborted Fetal Tissue in 1992 Research” on theblaze.com.