function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aqua, Journal of Ichthyology and Aquatic Biology', 6],
    ['Breviora', 2],
    ['Bulletin Acad. R. Belge, Cl. Sci., 5', 2],
    ['Carnegie Institution of Washington Publication', 2],
    ['European Journal of Taxonomy', 5],
    ['Japanese Journal of Ichthyology', 5],
    ['Notulae Naturae', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 3],
    ['Proceedings of the Biological Society of Washington', 6],
    ['Proceedings of the Linnean Society of New South Wales', 2],
    ['Proceedings of the United States National Museum, 3', 6],
    ['Species Diversity', 4],
    ['The Beagle. Records of the Museums and Art Galleries of the Northern Territory', 23],
    ['ZooKeys', 5],
    ['Zootaxa', 88],
    ['Other (25)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=188)',
    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);