function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['AL-Shehbaz, Ihsan A. & Barriera, Gabrielle', 594],
    ['Becherer', 651],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 642],
    ['Dean, David Allen', 1086],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 652],
    ['Don E. Wilson & Russell A. Mittermeier', 575],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 1539],
    ['Info Flora', 1670],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 664],
    ['Jarvis, Charlie', 3031],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 1206],
    ['Linnaeus, Carolus', 1140],
    ['Ormerod, Paul & Kurzweil, Hubert & Watthana, Santi', 854],
    ['Vega, Hermes & Cetzal-Ix, William & Mó, Edgar', 604],
    ['Wilson, Don E. & Reeder, DeeAnn', 1522],
    ['Other (7831)', 60060]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=76490)',
    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);