function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zootaxonomica Sinica', 107],
    ['Biodiversity Data Journal', 190],
    ['Indian Journal of Helminthology', 166],
    ['Japanese Journal of Zoology', 213],
    ['Journal of Natural History', 270],
    ['Journal of Parasitology', 393],
    ['Keigaku Publishing Company', 221],
    ['Proceedings of the Helminthological Society of Washington', 186],
    ['Rivista di Parassitologia', 184],
    ['Systematic Parasitology', 306],
    ['Transactions of the American Microscopical Society', 108],
    ['ZooKeys', 461],
    ['Zoological Journal of the Linnean Society', 165],
    ['Zoosystema', 441],
    ['Zootaxa', 2907],
    ['Other (731)', 5159]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=11477)',
    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);