function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals of the Natal Museum', 1],
    ['Biodiversity Data Journal', 2],
    ['Bishop Museum Occasional Papers', 2],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Bulletin of the United States Fish Commission', 1],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 1],
    ['Discovery Reports', 1],
    ['Journal of the Academy of Natural Sciences of Philadelphia, Second Series', 1],
    ['Journal of the Ocean Science Foundation', 1],
    ['Lingnan Science Journal', 1],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Raffles Bulletin of Zoology', 2],
    ['Species Diversity', 3],
    ['Zoological Studies', 2],
    ['Zootaxa', 41],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=68)',
    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);