function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Assing, Volker', 786],
    ['Becherer', 928],
    ['Bousquet, Yves', 1128],
    ['Broad, Gavin R.', 1928],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 1492],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 1509],
    ['Info Flora', 1695],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 2066],
    ['Jarvis, Charlie', 3175],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 1199],
    ['Linnaeus, Carolus', 3167],
    ['Monné, Miguel A.', 824],
    ['Nielsen, David H. & Robbins, Richard G. & Rueda, Leopoldo M.', 1064],
    ['Singh, Navneet & Ranjan, Rahul & Talukdar, Avishek', 830],
    ['Wilson, Don E. & Reeder, DeeAnn', 3939],
    ['Other (31320)', 292135]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=317865)',
    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);