function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société Impériale d\'Agriculture, Histoire Naturelle de Lyon', 1],
    ['Biodiversity Data Journal', 1],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Check List', 2],
    ['Memoirs of the Queensland Museum', 1],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 1],
    ['Notes from the Leyden Museum', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the Linnean Society of New South Wales', 9],
    ['Proceedings of the Royal Society of Queensland', 2],
    ['Proceedings of the Zoological Acclimatisation Society of Victoria', 1],
    ['Transactions of the Royal Society of South Australia', 2],
    ['Zoologische Verhandelingen, Leiden', 5],
    ['Zootaxa', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);