function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals of the Carnegie Museum', 1],
    ['Aqua, Journal of Ichthyology and Aquatic Biology', 1],
    ['Biodiversity Data Journal', 1],
    ['Check List', 1],
    ['Int. Rev. Hydrobiol. Leipzig', 1],
    ['Japanese Journal of Ichthyology', 1],
    ['Journal of Fish Biology', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Publications of the Field Museum of Natural History, Zoölogical', 1],
    ['Raffles Bulletin of Zoology', 6],
    ['Records of the Australian Museum', 1],
    ['Records of the Western Australian Museum', 2],
    ['Records of the Zoological Survey of India', 1],
    ['Zootaxa', 20],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=42)',
    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);