function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 3],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Check List', 1],
    ['Ha Noi, Scientific & Technology', 3],
    ['Journal of South Asian Natural History', 1],
    ['Kasetsart University Fishery Research Bulletin', 2],
    ['Notes from the Leyden Museum', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 6],
    ['Raffles Bulletin of Zoology', 5],
    ['Records of the Indian Museum', 1],
    ['Revue française d\'Aquariologie Herpétologie', 1],
    ['Science and Culture', 1],
    ['Zootaxa', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);