function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['AL-Shehbaz, Ihsan A. & Barriera, Gabrielle', 594],
    ['Becherer', 2648],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 1384],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 4093],
    ['Info Flora', 4750],
    ['Jarvis, Charlie', 8651],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 3366],
    ['Linnaeus, Carolus', 2988],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 1813],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 717],
    ['Ormerod, Paul & Kurzweil, Hubert & Watthana, Santi', 849],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 950],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 1102],
    ['Vega, Hermes & Cetzal-Ix, William & Mó, Edgar', 604],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 1545],
    ['Other (5846)', 45676]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=81730)',
    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);