function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anlaş, S.', 4],
    ['Anlaş, S. & A. F', 1],
    ['Assing, V.', 2],
    ['Assing, Volker', 1],
    ['Brunke, Adam J. & Marshall, Stephen A.', 3],
    ['Ghahari, H. & Anlaş, S. & Sakenin, H. & Ostovan, H. & Tabari, M.', 2],
    ['Hromádka, L.', 24],
    ['Hromádka, Lubomír', 11],
    ['Li, Liang & Schillhammer, Harald & Zhou, Hong-Zhang', 23],
    ['Maus, Mariana Chani-Posse De', 6],
    ['Mikátová, Šárka & Macháčková, Lenka & Hájek, Jiří', 27],
    ['Schillhammer, Harald', 5],
    ['Taphylininae & Iochini & Aorothiini & Thiini & Latyprosopini', 8],
    ['V, Alexey & V, Alexander & Barševskis, Arvids', 2],
    ['Webster, Reginald P. & Smetana, Ales & Sweeney, Jon D.', 3],
    ['Other (11)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=133)',
    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);