function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin of Aquatic Biology', 4],
    ['Check List', 12],
    ['Copeia', 16],
    ['Evencias', 4],
    ['Ichthyological Exploration of Freshwaters', 3],
    ['Laurentii Salvii', 3],
    ['Laurentius Salvius', 3],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 6],
    ['Nature Communications', 4],
    ['Neotropical Ichthyology', 224],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 9],
    ['Revue française d\'Aquariologie Herpétologie', 5],
    ['ZooKeys', 5],
    ['Zoological Journal of the Linnean Society', 70],
    ['Zootaxa', 152],
    ['Other (23)', 31]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=551)',
    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);