function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bergsträsser, Johann Andreas Benignus', 4],
    ['Bivar-De-Sousa, António & Vasconcelos, Sasha & Mendes, Luís F.', 6],
    ['Chainey, John E.', 32],
    ['Denis, Michael & Schiffermu ̈ ller, Ignaz', 20],
    ['Esper, Eugen Johann Christoph', 19],
    ['Fabricius, Johann Christian', 78],
    ['Hu, Shao-Ji & Cotton, Adam M. & Lamas, Gerardo & Duan, Kuang', 69],
    ['Hübner, Jacob', 15],
    ['Irungbam, Jatishwor Singh & Meitei, Laishram Ricky', 19],
    ['Linnaeus, Carolus', 236],
    ['Poda, Nicolaus', 5],
    ['Rottemburg, S. A. von', 7],
    ['Smith, Campbell R. & Liseki, Steven & Vane-Wright, Richard I.', 4],
    ['Stoll, Caspar', 13],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 9],
    ['Other (36)', 55]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=591)',
    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);