function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 23],
    ['African Invertebrates', 22],
    ['American Museum Novitates', 42],
    ['Biodiversity Data Journal', 331],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 8],
    ['Check List', 26],
    ['European Journal of Taxonomy', 12],
    ['Far Eastern Entomologist', 34],
    ['International journal of dipterological research', 12],
    ['Raffles Bulletin of Zoology', 9],
    ['Transactions and proceedings of the New Zealand Institute', 36],
    ['ZooKeys', 388],
    ['ZooNotes', 22],
    ['Zoological Systematics', 20],
    ['Zootaxa', 1014],
    ['Other (21)', 45]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2044)',
    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);