function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahrens, Dirk & Bezděk, Aleš', 187],
    ['Bezděk, Aleš & Hájek, Jiří', 188],
    ['Bezděk, Aleš & Hájek, Jiří & Ascr, Biology Centre', 324],
    ['Cambefort, Yves & Bordat, Patrice', 89],
    ['Chamorro, William & Marin-Armijos, Diego & senjo, Angelico', 250],
    ['Cheung, Kahong & Bai, Ming & Leung, Manhin & Lee, Yingming', 83],
    ['Cupello, Mario', 183],
    ['Frolov, Andrey & Akhmetova, Lilia', 78],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 332],
    ['Kharel, Bhim Prasad & Schoolmeester, Paul', 201],
    ['Montreuil, Olivier', 84],
    ['Moore, Matthew R. & Cave, Ronald D. & Branham, Marc A.', 570],
    ['Moore, Matthew R. & Jameson, Mary L. & Garner, Beulah H.', 526],
    ['Smith, Andrew B. T.', 103],
    ['Telnov, Dmitry', 155],
    ['Other (422)', 3539]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=6892)',
    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);