function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhansali, Sneha & Wesener, Thomas', 10],
    ['Brandt, Ioanne Friderico', 9],
    ['Butler, Arthur Gardiner', 17],
    ['De Zoysa, H. K. S. & Nguyen, Anh D. & Wickramasinghe, S.', 12],
    ['Golovatch, Sergei I. & Wesener, Thomas', 60],
    ['Hollier, John & Stöckli, Eduard & Wesener, Thomas', 13],
    ['Karsch, F.', 8],
    ['Likhitrakarn, Natdanai & Jirapatrasilp, Parin', 12],
    ['Spiegel, Didier Van den & Golovatch, Sergei I.', 49],
    ['Srisonchai, Ruttapon & Sutcharit, Chirasak', 9],
    ['Wesener, Thomas', 87],
    ['Wesener, Thomas & Bespalova, Ioulia & Sierwald, Petra', 19],
    ['Wesener, Thomas & Le, Daniel Minh-Tu & Loria, Stephanie F.', 11],
    ['Wesener, Thomas & Sagorny, Christina', 24],
    ['Wesener, Thomas & Wägele, Johann-Wolfgang', 39],
    ['Other (18)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=432)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);