function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 4],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 4],
    ['European Journal of Taxonomy', 21],
    ['Geological Survey Professional Paper', 3],
    ['Heineck et Faber', 5],
    ['Johan. Christi. Trappii', 5],
    ['Laurentius Salvius', 48],
    ['Ruthenica, Russian Malacological Journal', 5],
    ['The Bulletin of the Russian Far East Malacological Society', 8],
    ['U. S. Geological Survey, Professional Paper', 5],
    ['Visaya', 35],
    ['ZooKeys', 10],
    ['Zoological Journal of the Linnean Society', 8],
    ['Zoosystema', 7],
    ['Zootaxa', 95],
    ['Other (19)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=288)',
    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);