function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Constable', 49],
    ['Annalen des Naturhistorischen Museums in Wien', 4],
    ['Asiatic Researches', 14],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 5],
    ['Bulletin of the United States National Museum', 8],
    ['Ichthyological Exploration of Freshwaters', 8],
    ['Journal of the Bombay Natural History Society', 18],
    ['Laurentius Salvius', 31],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 8],
    ['Proceedings of the United States National Museum, 3', 6],
    ['Proceedings of the Zoological Society of London, B', 21],
    ['Raffles Bulletin of Zoology', 5],
    ['Records of the Indian Museum', 19],
    ['Report of the British Association for the Advancement of Science', 8],
    ['Zootaxa', 13],
    ['Other (79)', 117]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=334)',
    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);