function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Fad, Hassan H. & El-Torkey, Ashraf M.', 2],
    ['Anlaş, S.', 5],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 14],
    ['Assing, V.', 2],
    ['Assing, V. & Schülke, M. & M. R & A. S', 1],
    ['Assing, Volker & Schülke, Michael & Brachat, Volker', 1],
    ['Della Rocca, Francesca & Stefanelli, Silvia & Cardarelli, Elisa', 1],
    ['Gildenkov, M. Yu.', 20],
    ['Gildenkov, Mikhail', 3],
    ['Gildenkov, Mikhail Yu.', 48],
    ['Gildenkov, Mikhail Yu. & Mantič, Marion', 18],
    ['Lee, Jae-Seok & Ahn, Kee-Jeong', 2],
    ['Majka, Christopher & Sikes, Derek', 2],
    ['Schülke, M.', 3],
    ['Webster, Reginald P. & Davies, Anthony E. & Klimaszewski, Jan', 14],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=141)',
    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);