function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 1],
    ['Assing, V.', 1],
    ['Assing, Volker & Schülke, Michael & Brachat, Volker', 1],
    ['Broun, Thomas', 1],
    ['Cai, Yu-Jie & Tang, Liang', 2],
    ['Chani-Posse, Mariana & Newton, Alfred F. & Hansen, Aslak Kappel', 1],
    ['Majka, Christopher & Klimaszewski, Jan & Lauff, Randolph', 1],
    ['Shaw, Josh Jenkins & Solodovnikov, Alexey', 3],
    ['Stephens, James Francis', 1],
    ['Taphylininae & Iochini & Aorothiini & Thiini & Latyprosopini', 3],
    ['Yoo, In-Seong & Frank, J. H. & Jung, Jong-Kuen & Ahn, Kee-Jeong', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);