function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 16],
    ['Arthropod Systematics & amp; Phylogeny', 25],
    ['Biota Neotropica', 19],
    ['British Museum', 260],
    ['Bulletin of the American Museum of Natural History', 24],
    ['European Journal of Taxonomy', 100],
    ['Geodiversitas', 18],
    ['Insecta Mundi', 43],
    ['Journal of Natural History', 59],
    ['Revue suisse de Zoologie', 62],
    ['ZooKeys', 337],
    ['Zoological Journal of the Linnean Society', 17],
    ['Zoological Systematics', 42],
    ['Zoosystema', 18],
    ['Zootaxa', 990],
    ['Other (39)', 189]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2219)',
    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);