@article{doi:10.1001/jama.282.10.971, author = {Matser ET and Kessels AG and Lezak MD and Jordan BD and Troost J}, title = {NEuropsychological impairment in amateur soccer players}, journal = {JAMA}, volume = {282}, number = {10}, pages = {971-973}, year = {1999}, doi = {10.1001/jama.282.10.971}, URL = { + http://dx.doi.org/10.1001/jama.282.10.971}, eprint = {/data/Journals/JAMA/4688/JBR90197.pdf} }