function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahrens, Dirk', 3],
    ['Ahrens, Dirk & Bezděk, Aleš', 89],
    ['Bezděk, Aleš & Hájek, Jiří & Ascr, Biology Centre', 4],
    ['Bhunia, Debika & Gupta, Devanshu & Chandra, Kailash', 2],
    ['Bhunia, Debika & Gupta, Devanshu & Sarkar, Subhankar Kumar', 20],
    ['Chandra, Kailash & Ahrens, Dirk & Bhunia, Debika', 61],
    ['Fabrizi, Silvia & Liu, Wan-Gang & Bai, Ming & Yang, Xing-Ke', 247],
    ['Kaneko, Naoki & Wada, Kaoru', 6],
    ['Montreuil, Olivier', 2],
    ['Ranasinghe, Sasanka & Eberle, Jonas & Athukorala, Namal', 25],
    ['Ranasinghe, Sasanka & Eberle, Jonas & Benjamin, Suresh P.', 16],
    ['Sreedevi, Kolla & Ranasinghe, Sasankha & Fabrizi, Silvia', 4],
    ['Sreedevi, Kolla & Speer, Jana & Fabrizi, Silvia & Ahrens, Dirk', 3],
    ['Zhao, Ming-Zhi & Ahrens, Dirk', 20],
    ['Ziani, Stefano & Bezděk, Aleš & Branco, Tristão', 2],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=509)',
    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);