function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archiv für Molluskenkunde', 9],
    ['Biodiversity Data Journal', 1],
    ['Bulletins de la Société Malacologique de France', 1],
    ['European Journal of Taxonomy', 25],
    ['Journal of Conchology', 1],
    ['Journal of Natural History', 17],
    ['Memoirs of the Queensland Museum, Nature', 5],
    ['National Museum of New Zealand records', 3],
    ['Nautilus', 13],
    ['Proceedings of the Malacological Society of London', 1],
    ['Records of the Auckland Institute and Museum', 1],
    ['Records of the Auckland Museum', 4],
    ['Tuhinga: records of the Museum of New Zealand Te Papa Tongarewa', 38],
    ['ZooKeys', 23],
    ['Zootaxa', 59],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=202)',
    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);