function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Constable', 1],
    ['American Museum Novitates', 1],
    ['Annals of the Queensland Museum', 3],
    ['Anzeiger', 1],
    ['Aqua, Journal of Ichthyology and Aquatic Biology', 1],
    ['Australian zoologist', 1],
    ['Check List', 1],
    ['Copeia', 1],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 1],
    ['European Journal of Taxonomy', 1],
    ['Government Printer', 3],
    ['Proceedings of the Linnean Society of New South Wales', 3],
    ['Records of the Western Australian Museum', 2],
    ['The Beagle. Records of the Museums and Art Galleries of the Northern Territory', 2],
    ['Zootaxa', 16],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=46)',
    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);