function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Ichthyologica et Piscatoria', 3],
    ['Acta Societatis Regiae Scientiarum Indo-Neêrlandicae', 2],
    ['Australian zoologist', 2],
    ['Biodiversity Data Journal', 3],
    ['Bulletin of the United States Fish Commission', 4],
    ['European Journal of Taxonomy', 14],
    ['Ichthyological Bulletin of the J. L. B. Smith Institute of Ichthyology', 11],
    ['Indo-Pacific Fishes', 4],
    ['Journal of Natural History', 3],
    ['Laurentius Salvius', 3],
    ['Proceedings of the California Academy of Sciences, Series 4', 4],
    ['Proceedings of the United States National Museum, 3', 10],
    ['Special Bulletin of the United States National Museum', 3],
    ['Species Diversity', 11],
    ['Zootaxa', 102],
    ['Other (36)', 42]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=221)',
    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);