function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Ichthyologica et Piscatoria', 5],
    ['Acta Zootaxonomica Sinica', 1],
    ['Annals of the Natal Museum', 1],
    ['Anzeiger', 1],
    ['Check List', 1],
    ['European Journal of Taxonomy', 1],
    ['Field Columbian Museum Zoological Series', 2],
    ['Journal of Natural History', 3],
    ['Memoirs of the Queensland Museum', 1],
    ['Phuket Marine Biological Center Research Bulletin', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Raffles Bulletin of Zoology', 10],
    ['Species Diversity', 1],
    ['Zootaxa', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=46)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);