function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['He, Ailan & Liu, Jinxin & Xu, Xiang & Yin, Haiqiang', 4],
    ['Lin, Yucheng & Li, Shuqiang', 25],
    ['Liu, Bin-Lu & Yao, Yan-bin & Jiang, Zi-Min & Xiao, Yong-hong', 3],
    ['Liu, Jinxin & Huang, Zongguang & Xu, Xiang & Yin, Haiqiang', 3],
    ['Wang, Chunxia & Li, Shuqiang', 28],
    ['Wu, Yi & Wang, Chunxia & Zheng, Guo & Li, Shuqiang', 3],
    ['Zhu, Wenhui & Li, Shuqiang', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);