function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bian, Xun & Shi, Fu-Ming & Chang, Yan-Lin', 23],
    ['Bian, Xun & Shi, Fuming', 9],
    ['Jin, Xingbao & Liu, Xianwei & Wang, Hanqiang', 1],
    ['Pan, Yangyang & Bian, Xun', 12],
    ['Shi, Fu-Ming & Bai, Jin-Rong & Zhang, Ying & Chang, Yan-Lin', 2],
    ['Wang, Hanqiang & Li, Kai & Liu, Xianwei', 19],
    ['Wang, Tao & Chen, Powei & Shi, Fuming', 2],
    ['Zheng, Mengjia & Duan, Yanhao & Liu, Qing & Chang, Yanlin', 4],
    ['Zheng, Mengjia & Shi, Fuming', 6],
    ['Zheng, Mengjia & Shi, Fuming & Chang, Yanlin', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=82)',
    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);