function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Societatis Regiae Scientiarum Indo-Neêrlandicae', 8],
    ['Archiv für Naturgeschichte', 11],
    ['Australian zoologist', 4],
    ['Bulletin Inst. Fondam. Afr. Noire Sci. Nat., A', 13],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 4],
    ['Bulletin of the United States National Museum', 4],
    ['Calcutta Journal of Natural History, and Miscellany of the Arts and Sciences in India', 5],
    ['European Journal of Taxonomy', 8],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 5],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 8],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 18],
    ['Proceedings of the California Academy of Sciences, Series 4', 18],
    ['Proceedings of the United States National Museum, 3', 17],
    ['Sanfilippo', 7],
    ['Zootaxa', 240],
    ['Other (82)', 135]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=505)',
    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);