function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 13],
    ['Biodiversity Data Journal', 18],
    ['Contributions To Zoology', 34],
    ['Contributions to Zoology', 14],
    ['Iwanami Shoten', 41],
    ['Journal of Natural History', 85],
    ['Journal of the Ceylon Branch of the Royal Asiatic Society', 45],
    ['New Zealand Journal of Zoology', 12],
    ['Papéis Avulsos de Zoologia', 21],
    ['Proceedings of the Zoological Society of London', 59],
    ['Ruthenica, Russian Malacological Journal', 16],
    ['Veliger', 30],
    ['ZooKeys', 348],
    ['Zoological Journal of the Linnean Society', 229],
    ['Zootaxa', 475],
    ['Other (54)', 153]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1593)',
    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);