function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Constable', 11],
    ['Australian zoologist', 5],
    ['Check List', 4],
    ['Cybium', 6],
    ['D. Carlisle', 5],
    ['European Journal of Taxonomy', 9],
    ['Journal of Natural History', 4],
    ['Laurentius Salvius', 11],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 7],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 5],
    ['Records of the Australian Museum', 5],
    ['Report of the British Association for the Advancement of Science', 5],
    ['Turkish Journal of Zoology', 10],
    ['Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen', 5],
    ['Zootaxa', 97],
    ['Other (84)', 125]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=314)',
    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);