function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Bulletin of the United States Fish Commission', 1],
    ['Copeia', 1],
    ['European Journal of Taxonomy', 1],
    ['Fundacion Cientifica Los Roques', 1],
    ['Ichthyological Research', 1],
    ['Journal of the Ocean Science Foundation', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Proceedings of the United States National Museum, 3', 5],
    ['Publications of the Field Museum of Natural History, Zoölogical', 1],
    ['Report of the United States Commissioner of Fish and Fisheries', 2],
    ['Verslagen en Mededeelingen der Koninklijke Akademie van Wetenschappen. Afdeeling Natuurkunde', 2],
    ['Zootaxa', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=34)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);