function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fan, Zhi-Wei & Cai, Lei & Yang, Jia-Wen & Tang, Sheng-Hu', 1],
    ['Li, Zheng-Long & Huang, Zhang-Jie & Chen, Da-Wei & Hong, Xin', 1],
    ['Tan, Ke & Chen, Di-Ya & Song, Xi-Qiang & Ren, Ming-Xun', 1],
    ['Weber, Anton & Wei, Yi-Gang & Puglisi, Carmen & Wen, Fang', 16],
    ['Wen, Fang & Liang, Gui-You & Wei, Yi-Gang', 1],
    ['Zhang, Ren-Bo & Deng, Tan & Li, Nan & Wen, Fang', 1],
    ['Zhang, Rui-Li & Li, Shu & Maciejewski, Stephen & Wei, Yi-Gang', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    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);