function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 1],
    ['Assing, Volker & Brachat, Volker & Meybohm, Heinrich', 1],
    ['Assing, Volker & Schülke, Michael & Brachat, Volker', 2],
    ['Broun, Thomas', 3],
    ['Ghahari, H. & Anlaş, S. & Sakenin, H. & Ostovan, H. & Tabari, M.', 1],
    ['Hlavá, Peter & Nakládal, Oto', 2],
    ['Navarrete-Heredia, José Luis & Gómez-Rodríguez, Cecilia', 1],
    ['Newton, Alfred F.', 1],
    ['V, Alexey & V, Alexander & Barševskis, Arvids', 2],
    ['Webster, Reginald P. & Chandler, Donald S. & Sweeney, Jon D.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);