function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bariche, Michel & Fricke, Ronald', 8],
    ['Bleeker, Pieter', 58],
    ['Bonnaterre, Joseph Pierre', 5],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 10],
    ['Day, F.', 6],
    ['Hamilton, F. Buchanan', 7],
    ['Kessler, K. T.', 11],
    ['Kovačić, Marcelo & Renoult, Julien P. & Pillon, Roberto', 17],
    ['Linnaeus, Carolus', 9],
    ['Macleay, William John', 8],
    ['Nardo, J. D.', 6],
    ['Peters, Wilhelm Carl Hartwig', 8],
    ['Sauvage, H. E.', 10],
    ['Steindachner, F.', 17],
    ['Weber, M.', 7],
    ['Other (125)', 186]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=373)',
    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);