function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zootaxonomica Sinica', 3],
    ['Bulletin Inst. Fondam. Afr. Noire Sci. Nat., A', 1],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Copeia', 1],
    ['European Journal of Taxonomy', 4],
    ['Faune Tropicale', 1],
    ['International Journal of Research Studies in Zoology', 1],
    ['Israel Journal of Zoology', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Proceedings of the Zoological Society of London, B', 2],
    ['Records of the Australian Museum', 1],
    ['Rep. Lab. Fish. Biol. Taiwan', 1],
    ['Zootaxa', 37]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=56)',
    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);