function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 2],
    ['Engel, Julien & Molino, Jean-François & Marinho, Lucas C.', 2],
    ['Gaudeul, Myriam & Sweeney, Patrick & Munzinger, Jerome', 20],
    ['Jarvis, Charlie', 7],
    ['Kazerani, F. & Beuk, P. & Farashiani, M. E.', 3],
    ['Lauterbach, Carl (Karl) Adolf Georg', 23],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 2],
    ['Linnaeus, Carolus', 4],
    ['Maia, Valéria Cid & Mascarenhas, Bernardo', 2],
    ['Marinho, Lucas C. & Fiaschi, Pedro & Amorim, Andre M.', 3],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 37],
    ['Munzinger, Jérôme & Bruy, David & Pignal, Marc', 2],
    ['Smith, Albert Charles', 14],
    ['Sosef, Marc S. M. & Dauby, Gilles', 8],
    ['Turner, I. M.', 3],
    ['Other (20)', 20]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=152)',
    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);