Hello.<br/>What is <i>concurrent</i> agreesion in:<br/>"Low levels of a serotonin metabolite (5-hydroxyindoleacetic acid) in cerebrospinal fluid have been linked to <u>concurrent</u> (<a href='http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21#Kruesi-etal-1990' target='_blank' rel='nofollow'>http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21#Kruesi-etal-1990</a>) and future aggression (<a href='http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21#Clarke-etal-1999' target='_blank' rel='nofollow'>http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21#Clarke-etal-1999</a>; <a href='http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21#Kruesi-etal-1992' target='_blank' rel='nofollow'>http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21#Kruesi-etal-1992</a>) in children."<br/>taken from <a href="http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21"><a href='http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21' target='_blank' rel='nofollow'>http://focus.psychiatryonline.org/article.aspx?Volume=2&page=558&journalID=21</a> </a> ?