function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 98],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 21],
    ['Brünnich, M. T.', 2],
    ['Callaghan, Corey T. & Kekeubata, Esau & Waneagea, Jackson', 3],
    ['Castro-Vargas, Fernando & Cruz-Mendivelso, Yerson', 3],
    ['Damayanti, Lia & Muñoz, Jesús & Wicke, Susann & Symmank, Lars', 4],
    ['Dronen, Norman O. & Blend, Charles K.', 3],
    ['Fernandez, Juan Manuel & Thomann, Luz & Fandiño, Blas', 2],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 2],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 10],
    ['Jansen, Justin J. F. J.', 2],
    ['Just, João Paulo Gava & Rosoni, Jonas Rafael Rodrigues', 3],
    ['Linnaeus, Carolus', 32],
    ['Vieillot, Louis Pierre', 3],
    ['Vilas Boas da Frota, Angélica & Vitorino, Breno Dias', 5],
    ['Other (20)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=218)',
    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);