function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Australasian Journal of Herpetology', 9],
    ['Biodiversity Data Journal', 12],
    ['Check List', 9],
    ['Journal of the Royal Society of New Zealand', 6],
    ['Mémoires du Muséum national d\'Histoire naturelle', 6],
    ['New Zealand Journal of Zoology', 6],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 8],
    ['Raffles Bulletin of Zoology', 13],
    ['Records of the Australian Museum', 8],
    ['Vertebrate Zoology', 18],
    ['ZooKeys', 12],
    ['Zoological Journal of the Linnean Society', 35],
    ['Zoosystema', 24],
    ['Zoosystematics and Evolution', 10],
    ['Zootaxa', 457],
    ['Other (18)', 40]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=673)',
    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);