function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Academy of Natural Sciences', 82],
    ['Annals of the Lyceum of Natural History of New York', 15],
    ['F. A. Brockhaus', 11],
    ['Gebrüder Paetel', 6],
    ['Journal de Conchyliologie', 12],
    ['Nautilus', 12],
    ['Press Publishing Company', 11],
    ['Proceedings of the Boston Society of Natural History', 7],
    ['Proceedings of the Zoological Society of London', 71],
    ['Reeve & Benham', 12],
    ['University Press', 11],
    ['ZooKeys', 12],
    ['Zoological Society of London', 29],
    ['Zoosystema', 11],
    ['Zootaxa', 7],
    ['Other (20)', 48]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=357)',
    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);