function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 2],
    ['Annals of the Carnegie Museum', 4],
    ['Copeia', 4],
    ['Ichthyological Exploration of Freshwaters', 5],
    ['Killi-Data Editions', 4],
    ['Memoirs of the Museum of Comparative Zoology, at Harvard College', 4],
    ['Neotropical Ichthyol.', 5],
    ['Neotropical Ichthyology', 8],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Publications of the Field Museum of Natural History, Zoölogical', 3],
    ['Revista Brasileira de Biologia', 2],
    ['Revista Brasileira de Zoologia', 4],
    ['Revue française d\'Aquariologie Herpétologie', 6],
    ['Société Française d\'Ichtyologie', 4],
    ['Zootaxa', 17],
    ['Other (26)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=101)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);