function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aballay, Fernando H. & Chani-Posse, Mariana R.', 8],
    ['Anlaş, S.', 13],
    ['Assing, Volker & Schülke, Michael & Brachat, Volker', 4],
    ['Brunke, Adam J. & Marshall, Stephen A.', 6],
    ['Chani-Posse, Mariana', 28],
    ['Ghahari, H. & Anlaş, S. & Sakenin, H. & Ostovan, H. & Tabari, M.', 4],
    ['Hromádka, L.', 9],
    ['Hromádka, Lubomír', 50],
    ['Majka, Christopher & Klimaszewski, Jan & Lauff, Randolph', 7],
    ['Maus, Mariana Chani-Posse De', 5],
    ['Mikátová, Šárka & Macháčková, Lenka & Hájek, Jiří', 103],
    ['Navarrete-Heredia, José Luis & Gómez-Rodríguez, Cecilia', 66],
    ['Pietrykowska-Tudruj, Ewa & Staniec, Bernard', 4],
    ['Taphylininae & Iochini & Aorothiini & Thiini & Latyprosopini', 34],
    ['Webster, Reginald P. & Smetana, Ales & Sweeney, Jon D.', 12],
    ['Other (39)', 67]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=420)',
    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);