function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Constable', 11],
    ['Australian zoologist', 8],
    ['Bulletin of the Bingham Oceanographic Collection Yale University', 13],
    ['Check List', 18],
    ['European Journal of Taxonomy', 15],
    ['Japanese Journal of Ichthyology', 11],
    ['Laurentius Salvius', 11],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 13],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 12],
    ['Proceedings of the Linnean Society of New South Wales', 8],
    ['Proceedings of the United States National Museum, 3', 14],
    ['Raffles Bulletin of Zoology', 15],
    ['Turkish Journal of Zoology', 10],
    ['Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen', 19],
    ['Zootaxa', 197],
    ['Other (120)', 238]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=613)',
    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);