function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Babenko, Anatoly & Stebaeva, Sophya & Turnbull, Matthew S.', 3],
    ['Huang, Cheng-Wang & Potapov, Mikhail', 4],
    ['Potapov, Mikhail & Babenko, Anatoly & Fjellberg, Arne', 20],
    ['Potapov, Mikhail & Huang, Cheng-Wang & Gulgenova, Ayuna', 1],
    ['Soto-Adames, Felipe N. & Giordano, Rosanna', 1],
    ['Xie, Gui-Lin & Chen, Jian-Xiu', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);