function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 34],
    ['Bulletin of the American Museum of Natural History', 14],
    ['Check List', 36],
    ['Copeia', 15],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 10],
    ['Ichthyological Exploration of Freshwaters', 19],
    ['Neotropical Ichthyology', 201],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 28],
    ['Proceedings of the Zoological Society of London, B', 9],
    ['Revue française d\'Aquariologie Herpétologie', 22],
    ['Revue suisse de zoologie', 16],
    ['Transactions of the Zoological Society of London', 11],
    ['ZooKeys', 33],
    ['Zoological Journal of the Linnean Society', 42],
    ['Zootaxa', 565],
    ['Other (77)', 208]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1263)',
    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);