function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bakker, Piet A. J. & Albano, Paolo G.', 203],
    ['Becherer', 137],
    ['Chase, Mark W. & Gravendeel, Barbara & Sulistyo, Bobby P.', 344],
    ['D. M. Moore (ed.)', 236],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 169],
    ['Info Flora', 233],
    ['Jarvis, Charlie', 446],
    ['Kocyan, Alexander & Schuiteman, André', 125],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 155],
    ['Linnaeus, Carolus', 189],
    ['Manning, John C. & Goldblatt, Peter', 152],
    ['Ormerod, Paul & Kurzweil, Hubert & Watthana, Santi', 854],
    ['Schlechter, Fridrich Richard Rudolf', 252],
    ['Smith, Johannes Jacobus', 349],
    ['Vega, Hermes & Cetzal-Ix, William & Mó, Edgar', 604],
    ['Other (741)', 3502]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=7950)',
    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);