function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adams, Richard J. & Price, Roger D. & Clayton, Dale H.', 2],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 4],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 2],
    ['Callaghan, Corey T. & Kekeubata, Esau & Waneagea, Jackson', 1],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 2],
    ['Hermann, Johann', 1],
    ['Hume, Julian Pender', 1],
    ['Jansen, Justin J. F. J.', 3],
    ['Latham, John', 2],
    ['Linnaeus, Carolus', 25],
    ['Mlíkovský, Jiří & Frahnert, Sylke', 3],
    ['Mourer-Chauviré, Cécile & Geraads, Denis', 2],
    ['Pallas, Peter Simon', 1],
    ['Temminck, Coenraad Jacob', 5],
    ['Voisin, Claire & Voisin, Jean-François & Jouanin, Christian', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);