function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Burgess, W. E.', 5],
    ['Castro, D. M.', 2],
    ['Cope, Edward Drinker', 4],
    ['De Oliveira, Rianne C. & Ota, Renata R. & Deprá, Gabriel C.', 12],
    ['Dinkelmeyer, J.', 3],
    ['Eigenmann, C. H. & Allen, W. R.', 4],
    ['Eigenmann, C. H. & Kennedy, C. H.', 2],
    ['Kner, R.', 3],
    ['Nijssen, H.', 7],
    ['Nijssen, H. & Isbrücker, I. J. H.', 20],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 3],
    ['Rössel, F.', 4],
    ['Sands, D. D.', 4],
    ['Steindachner, F.', 8],
    ['Weitzman, Stanley H. & Nijssen, H.', 3],
    ['Other (48)', 57]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=141)',
    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);