function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Antarctic Sci.', 1],
    ['Baudouin, Imprimeur du Corps législatif et de l\'Institut national, place du Carrousel, N °. 662, an 6', 1],
    ['Bulletin du Musée Royal d\'Histoire Naturelle de Belgique', 1],
    ['Bulletin of the Auckland Museum', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 1],
    ['College of Agriculture, Hokkaido Imperial University', 1],
    ['European Journal of Taxonomy', 1],
    ['Journal of Natural History', 6],
    ['Journal of the Faculty of Fisheries and Animal Husbandry, Hiroshima University', 5],
    ['Marine Biodiversity', 2],
    ['Molluscan Research', 7],
    ['NIWA', 9],
    ['Species Diversity', 1],
    ['Zoological Science', 2],
    ['Zootaxa', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=56)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);