function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Palaeontologica Romaniae', 3],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Eiszeitalter und Gegenwart', 1],
    ['European Journal of Taxonomy', 275],
    ['Hallageriis', 3],
    ['Journal of Natural History', 48],
    ['Proceedings of the Japanese Society of Systematic Zoology', 2],
    ['Raffles Bulletin of Zoology', 6],
    ['Revista Española de Paleontología', 2],
    ['Species Diversity', 3],
    ['The Journal of the Linnean Society of London, Zoology', 2],
    ['Transactions of the geological society of London, 2', 3],
    ['ZooKeys', 10],
    ['Zoological Journal of the Linnean Society', 2],
    ['Zootaxa', 484],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=849)',
    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);