function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 17],
    ['Biodiversity Data Journal', 23],
    ['European Journal of Taxonomy', 271],
    ['Journal of Natural History', 577],
    ['Journal of Species Research', 79],
    ['Proceedings of the Japanese Society of Systematic Zoology', 17],
    ['Raffles Bulletin of Zoology', 34],
    ['Records of the Australian Museum', 336],
    ['Species Diversity', 50],
    ['Transactions of the Linnean Society of London, Second Series. Zoology', 22],
    ['ZooKeys', 269],
    ['Zoological Journal of the Linnean Society', 89],
    ['Zoosystema', 31],
    ['Zoosystematics and Evolution', 95],
    ['Zootaxa', 3649],
    ['Other (93)', 300]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=5859)',
    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);