function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Palaeontologica Polonica', 3],
    ['Bulletin of the American Museum of Natural History', 5],
    ['Check List', 5],
    ['Copeia', 16],
    ['Current Herpetology', 12],
    ['Fossil Record', 6],
    ['Geodiversitas', 15],
    ['Joan Thomae', 5],
    ['Journal of Natural History', 6],
    ['Palaeontologia Electronica', 8],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 8],
    ['ZooKeys', 8],
    ['Zoological Journal of the Linnean Society', 37],
    ['Zoological Science', 5],
    ['Zootaxa', 189],
    ['Other (27)', 39]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=367)',
    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);