function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de la Societe Entomologique de Belgique', 31],
    ['Annales de la Société Entomologique de France', 13],
    ['Biodiversity Data Journal', 31],
    ['Bollettino della Societa Entomologica Italiana', 15],
    ['British Museum', 18],
    ['Bulletin de la Societe Vaudoise des Sciences Naturelles', 24],
    ['Bulletin of the American Museum of Natural History', 17],
    ['Deutsche Entomologische Zeitschrift', 17],
    ['Harvard University Press', 624],
    ['Memoires de l\'Institut Francais d\'Afrique Noire', 18],
    ['Revue de Zoologie Africaine', 30],
    ['Soil Organisms', 24],
    ['ZooKeys', 121],
    ['Zoosystema', 15],
    ['Zootaxa', 407],
    ['Other (51)', 176]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1581)',
    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);