function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezděk, Aleš & Hájek, Jiří & Ascr, Biology Centre', 4],
    ['Filippini, V. & Galante, E. & Micó, E.', 8],
    ['Filippini, Valentina & Galante, Eduardo & Micó, Estefanía', 4],
    ['Filippini, Valentina & Micó, Estefania & Galante, Eduardo', 5],
    ['Freese, Edwin L. & Veal, Doug A. & Lago, Paul K.', 5],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 8],
    ['Huang, Gui-Qiang & Wang, Fa-Lei', 6],
    ['Jin, Mengjie & Weir, Tom & Ślipiński, Adam & Pang, Hong', 4],
    ['Limbourg, Pol & Dekoninck, Wouter & Seidel, Matthias', 5],
    ['Paucar-Cabrera, Aura', 40],
    ['Wang, Fa-Lei & Zorn, Carsten', 12],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 7],
    ['Zhao, Ming-Zhi & Zorn, Carsten', 7],
    ['Zorn, Carsten', 12],
    ['Zorn, Carsten & Kobayashi, Hirokazu & Wada, Kaoru', 61],
    ['Other (12)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=213)',
    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);