function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archiv für Naturgeschichte, Abteilung A', 1],
    ['Arthropod Systematics & amp; Phylogeny', 4],
    ['Biodiversity Data Journal', 2],
    ['Boletin de la Academia Nacional de Ciencias, Cordoba', 1],
    ['Bonner zoologische Beiträge', 1],
    ['Bulletin of the British Arachnological Society', 2],
    ['C. F. Berling', 1],
    ['Comptes Rendus de l\'Academie des Sciences. Serie III, Sciences de la vie', 1],
    ['European Journal of Taxonomy', 16],
    ['Journal of Natural History', 5],
    ['Subterranean Biology', 13],
    ['ZooKeys', 43],
    ['Zoological Journal of the Linnean Society', 25],
    ['Zoosystema', 3],
    ['Zootaxa', 290],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=409)',
    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);