function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biol. Results " Endeavour "', 2],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Colonial Museum and Geological Survey Department', 1],
    ['European Journal of Taxonomy', 7],
    ['Fieldiana Zoology, New Series', 1],
    ['Japanese Journal of Zoology', 1],
    ['Journal Sigenkagaku Kenkyusyo', 1],
    ['Records of the Australian Museum', 1],
    ['Report of the Fisheries and Marine Biological Survey, Union of South Africa', 1],
    ['Special Bulletin of the United States National Museum', 1],
    ['Voprosy Ikhtiologii', 3],
    ['Zoologica', 1],
    ['Zootaxa', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=34)',
    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);