function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Averyanov, Leonid V. & Tanaka, Noriyuki & Nguyen, Khang Sinh', 3],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 1],
    ['Lin, Qin-Wen & Le, Chi-Toan & Yu, Zhi-Yong & Sun, Guo-Feng', 1],
    ['Nguyen, Khang Sinh & Tanaka, Noriyuki & Averyanov, Leonid V.', 2],
    ['Nong, Dong-Xin & Lü, Hui-Zhen & Huang, Xue-Yan & Huang, Bao-You', 1],
    ['Pham, Van The & Tanaka, Noriyuki & Averyanov, Leonid V.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);