function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Eichenberger, Beata & Kranz-Baltensperger, Yvonne', 8],
    ['Grismado, Cristian J. & Deeleman, Christa & Piacentini, Luis N.', 8],
    ['Hosseini, Mohammad-Javad Malek & Grismado, Cristian J.', 2],
    ['Huang, Ying & Bian, Dong-Ju & Tong, Yan-Feng & Zhang, Zhi-Sheng', 3],
    ['Ma, Jimeng & Bian, Dongju & Tong, Yanfeng & Yang, Zizhong', 4],
    ['Tong, Yanfeng & Chen, Haifeng & Bai, Shuchong & Zhang, Zhisheng', 8],
    ['Tong, Yanfeng & Guan, Xijin & Li, Shuqiang', 3],
    ['Tong, Yanfeng & Li, Shuqiang', 2],
    ['Tong, Yanfeng & Li, Shuqiang & Bian, Dongju', 7],
    ['Wang, Ying & Tong, Yanfeng & Bian, Dongju & Li, Shuqiang', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=49)',
    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);