function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chu, Chang & Lu, Ying & Li, Shuqiang & Yao, Zhiyuan', 2],
    ['Dean, David Allen', 1],
    ['Jäger, Peter', 7],
    ['Jäger, Peter & Minn, Myin Zu', 1],
    ['Li, Zhiyue & Jin, Chi & Zhang, Feng', 2],
    ['Lu, Ying & Chu, Chang & Yao, Zhiyuan & Li, Shuqiang', 1],
    ['Marusik, Yuri M. & Koponen, Seppo', 1],
    ['Trilikauskas, L. A. & Sergeev, M. E.', 1],
    ['ZONSTEIN, SERGEI & MARUSIK, YURI M.', 1],
    ['Zhang, Feng & Hu, Dong-Sheng & Han, Guang-Xin', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);