function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Societatis Regiae Scientiarum Indo-Neêrlandicae', 2],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 1],
    ['Anzeiger', 1],
    ['Beverley Tucker', 2],
    ['Bol. Mus. Hist. Nat. " Javier Prado " Lima', 1],
    ['Bulletin of the Bingham Oceanographic Collection Yale University', 1],
    ['F. S. Hübschmann, Monachii [= Munich] & Fleischer, Lipsiae [= Leipzig]', 5],
    ['Memoirs of the Indian Museum', 2],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 3],
    ['Physis', 3],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 3],
    ['Proceedings of the Linnean Society of New South Wales', 3],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen', 6],
    ['Zootaxa', 5],
    ['Other (19)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=59)',
    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);