function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araújo, Diogo & Alves, Marccus', 1],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 2],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 1],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 3],
    ['Elie, Ntirenganya & Yajin, Li & Yanlan, Xie & Yanli, Zhou', 7],
    ['Howell, Nathan & Krings, Alexander & Braham, Richard R', 8],
    ['Jarvis, Charlie', 13],
    ['Krause, Johann Wilhelm', 5],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 2],
    ['Qi, Zhechen & Li, Pan & Fu, Chengxin', 13],
    ['Schlechter, Fridrich Richard Rudolf', 2],
    ['Suh, Soo-Jung', 2],
    ['Sukhramani, Geetika & Choudhary, Ritesh Kumar', 11],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 10],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 2],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=90)',
    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);