function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 12],
    ['Alpine Entomology', 7],
    ['Australian Journal of Entomology', 3],
    ['Biodiversity Data Journal', 4],
    ['Fragmenta Faunistica', 13],
    ['Insecta Mundi', 30],
    ['Journal of Natural History', 4],
    ['Occasional Papers of the Bernice P. Bishop Museum', 8],
    ['Pacific Science', 16],
    ['Proceedings of the Hawaiian Entomological Society', 25],
    ['Proceedings of the Linnean Society of New South Wales', 7],
    ['Taxonomic Monographs on Neotropical Hymenoptera', 42],
    ['ZooKeys', 52],
    ['Zoosystema', 19],
    ['Zootaxa', 221],
    ['Other (7)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=473)',
    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);