@misc{indiciae98d952f4865b, title = {Mental concentration and the pattern reversal visual evoked response.}, author = {W A Douthwaite and H Connor}, year = {1989}, doi = {10.1097/00006324-198901000-00016}, url = {https://pubmed.ncbi.nlm.nih.gov/2927914/}, note = {Source identifier: 2927914} }