function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Arachnologica', 17],
    ['Arthropoda Selecta', 6],
    ['Biodiversity Data Journal', 77],
    ['Bulletin of the American Museum of Natural History', 43],
    ['European Journal of Taxonomy', 16],
    ['Evolutionary Systematics', 13],
    ['Far Eastern Entomologist', 11],
    ['Iheringia, Série Zoologia', 8],
    ['Journal Arachnol', 8],
    ['Vestnik Zoologii', 17],
    ['ZooKeys', 26],
    ['Zoological Journal of the Linnean Society', 33],
    ['Zoosystema', 16],
    ['Zoosystematics and Evolution', 7],
    ['Zootaxa', 135],
    ['Other (14)', 34]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=467)',
    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);