function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Castro, R. M. C.', 2],
    ['Cope, Edward Drinker', 2],
    ['Diniz, Paulo Baltazar & Siqueira, Hatus de Oliveira', 1],
    ['Eigenmann, C. H.', 2],
    ['Eigenmann, C. H. & Ogle, F.', 1],
    ['Fowler, Henry Weed', 3],
    ['Holmberg, Eduardo Ladislao', 1],
    ['Kner, R.', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Loubens, G. & Lauzanne, L. & Géry, J.', 1],
    ['Luque, José L. & Tavares, Luiz E. R.', 1],
    ['Lütken, Christian Frederik', 1],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 1],
    ['Spix, J. B. von & Agassiz, Jean Louis Rodolphe', 2],
    ['Steindachner, F.', 5],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    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);