function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Ichthyologica et Piscatoria', 1],
    ['Acta Societatis Regiae Scientiarum Indo-Neêrlandicae', 2],
    ['Acta Zoologica Sinica', 2],
    ['Biodiversity Data Journal', 2],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 3],
    ['Bulletin de la Société Zoologique de France', 1],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Cybium', 3],
    ['Journal of Natural History', 9],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 2],
    ['Notes from the Leyden Museum', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 8],
    ['Proceedings of the United States National Museum, 3', 3],
    ['Raffles Bulletin of Zoology', 3],
    ['Zootaxa', 12],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=64)',
    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);