function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hou, Shao-Bing & Wang, Kai & Guo, Peng & Chen, Jin-Min', 4],
    ['Li, Hui & Zhu, Le-Qiang & Xiao, Bei & Huang, Jie & Wu, Shao-Wu', 1],
    ['Li, Ke & Yu, Min & Wu, Ya-Yong & Liao, Lin-Hong & Tang, Kui', 1],
    ['Luu, Vinh Quang & Ziegler, Thomas & Ha, Nghia Van & Lo, Oanh Van', 1],
    ['Ma, Shun & Shi, Sheng-Chao & Xiang, Sun-Jun & Shu, Fu', 1],
    ['Ma, Shun & Xu, Yu-Hao & Qi, Shuo & Wang, Ying-Yong', 1],
    ['Wang, Jian & Li, Yao & Zeng, Zhao-Chi & Lyu, Zhi-Tong', 1],
    ['Yang, Dian-Cheng & Huang, Ru-Yi & Jiang, Ke & Burbrink, Frank T.', 1],
    ['Yang, Dian-Cheng & Xu, Yu-Hao & Wu, Jia-Xiang & Gong, Yan-An', 1],
    ['Ziegler, Thomas & Nguyen, Truong Quang & Pham, Cuong The', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);