function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dai, Wu & Zhang, Yalin', 10],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 1],
    ['Dietrich, Christopher H. & Nguyen, Huong T. T. & Pham, Hong Thai', 1],
    ['Dmitriev, Dmitry A. & Li, Zizhong & Dai, Renhuai & Xing, Jichun', 2],
    ['Gore, Ramchandra & Gaikwad, Sayajirao', 2],
    ['Jarvis, Charlie', 2],
    ['Monteiro, Francisca & Costa, Esperança Da & Kissanga, Raquel', 1],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 2],
    ['Wijnands, Dirk Onno & Heniger, Johannes & Veldkamp, Jan Frederik', 1],
    ['Xing, Jichun & Li, Zizhong', 2],
    ['Yang, Lin & Chen, Xiang-Sheng', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);