function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Fad, Hassan H. & El-Torkey, Ashraf M.', 1],
    ['Anlaş, S.', 2],
    ['Anlaş, S. & A. F', 1],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 1],
    ['Assing, Volker', 4],
    ['Assing, Volker & Schülke, Michael & Brachat, Volker', 4],
    ['Bortoluzzi, Sidnei & Caron, Edilson', 2],
    ['Brunke, Adam J. & Marshall, Stephen A.', 1],
    ['Castro, Jessica Cristina De & Caron, Edilson', 5],
    ['Ghahari, H. & Anlaş, S. & Sakenin, H. & Ostovan, H.', 2],
    ['Majka, Christopher & Klimaszewski, Jan & Lauff, Randolph', 5],
    ['Navarrete-Heredia, José Luis & Gómez-Rodríguez, Cecilia', 3],
    ['Schülke, M.', 27],
    ['Webster, Reginald P. & Davies, Anthony E. & Klimaszewski, Jan', 2],
    ['Zheng, Fa-Ke', 3],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=67)',
    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);