function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Altuna, Álvaro', 2],
    ['Bassett-Smith, P. W.', 4],
    ['Brook, George', 8],
    ['Cairns, S. D.', 2],
    ['Cairns, Stephen D. & Häussermann, Verena & Försterra, Günter', 2],
    ['Cairns, Stephen D. & Polonio, Virginia', 2],
    ['Ellis, John & Solander, Daniel', 2],
    ['Ellis, John & Solander, Daniel Carl', 15],
    ['Esper, Eugen Johann Christoph', 2],
    ['Filander, Zoleka N. & Kitahara, Marcelo V. & Cairns, Stephen D.', 2],
    ['Forsskål, Peter', 3],
    ['Linnaeus, Carolus', 26],
    ['Moseley, Henry Nottidge', 3],
    ['Studer, T.', 6],
    ['Verrill, Addison Emery', 7],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=89)',
    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);