function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 230],
    ['African invertebrates', 31],
    ['Arthropod fauna of the UAE', 31],
    ['Biodiversity Data Journal', 154],
    ['Bulletin of the British Arachnological Society', 23],
    ['European Journal of Taxonomy', 274],
    ['Journal of Natural History', 35],
    ['Peckhamia', 444],
    ['Raffles Bulletin of Zoology', 60],
    ['Records of the Australian Museum', 25],
    ['ZooKeys', 494],
    ['Zoological Journal of the Linnean Society', 25],
    ['Zoosystema', 92],
    ['Zoosystematics and Evolution', 26],
    ['Zootaxa', 1258],
    ['Other (55)', 230]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3432)',
    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);