function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cai, Lei & Liu, De-Tuan & Zhang, Pin & Dao, Zhi-Ling', 2],
    ['Shi, Xi-Zuo & Wang, Jia-Cai & Yang, Li-Hua', 1],
    ['Taram, Momang & Borah, Dipankar & Taku, Ojar & Tag, Hui', 1],
    ['Yang, Bin & Ding, Hong-Bo & Fu, Kai-Cong & Yuan, Yi-Kai', 1],
    ['Yang, Lihua & Feng, Chen & Kang, Ming & Wen, Fang', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=6)',
    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);