function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bai, Xing-Long & Li, Xiu-Min & Ren, Guo-Dong', 5],
    ['Ji, Bao-Yue & Ma, Xing-Tao & Rong, Ji-Da & Ren, Guo-Dong', 1],
    ['Li, Xiu-Min & Bai, Xing-Long & Ren, Guo-Dong', 3],
    ['Shi, Ai-Min', 4],
    ['Zhu, Xi-Chao & Ren, Guo-Dong', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);