function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boulenger, George Albert', 1],
    ['Bussing, William A.', 1],
    ['Cope, Edward Drinker', 5],
    ['Eigenmann, C. H.', 3],
    ['Fowler, Henry Weed', 2],
    ['Gill, T. N.', 1],
    ['Hildebrand, S. F.', 1],
    ['Meek, S. E. & Hildebrand, S. F.', 1],
    ['Menezes, Naercio A. & de Lucena, C. A. S.', 1],
    ['Pignalberi, C. T.', 1],
    ['Steindachner, F.', 4],
    ['de Lucena, C. A. S.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);