function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 3],
    ['Arthropod Systematics & amp; Phylogeny', 13],
    ['Biodiversity Data Journal', 10],
    ['Caucasian Entomological Bulletin', 7],
    ['Deutsche Entomologische Zeitschrift', 5],
    ['Entomo Helvetica', 3],
    ['European Journal of Taxonomy', 13],
    ['Insect Systematics & Evolution', 6],
    ['Insect Systematics and Diversity', 8],
    ['Insecta Mundi', 150],
    ['Journal and Proceedings of the Linnean Society of London, Zoology', 15],
    ['Journal of Natural History', 4],
    ['ZooKeys', 3],
    ['Zoological Systematics', 6],
    ['Zootaxa', 393],
    ['Other (7)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=648)',
    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);