function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Société Impériale d\'Agriculture, Histoire Naturelle de Lyon', 1],
    ['Annals of the Carnegie Museum', 1],
    ['Archives du Museum National d\'Histoire Naturelle, 6', 1],
    ['Biodiversity Data Journal', 2],
    ['Bulletin of the United States National Museum', 1],
    ['Bulletin of the Vanderbilt Marine Museum', 1],
    ['Check List', 1],
    ['European Journal of Taxonomy', 2],
    ['Journal of Natural History', 3],
    ['Natuurkundige Verhandelingen van de Hollandsche Maatschappij der Wetenschappen te Haarlem, Series 2', 1],
    ['Occasional Papers of the Department of Ichthyology, Rhodes University', 1],
    ['Proceedings of the California Academy of Sciences, Series 2', 2],
    ['Report of the British Association for the Advancement of Science', 2],
    ['The Journal of the Linnean Society of London, Zoology', 2],
    ['Zootaxa', 16],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=40)',
    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);