function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Australasian Journal of Herpetology', 6],
    ['Biodiversity Data Journal', 1],
    ['Biology Letters', 1],
    ['Crocodilian: Journal of the Victorian Association of Amateur Herpetologists Incorporated', 6],
    ['Geodiversitas', 4],
    ['Journal of Herpetology', 5],
    ['Magasin Encyclopédique, ou Journal des Sciences, des Lettres et des Arts', 1],
    ['Newsletter of the Macarthur Herpetological Society', 1],
    ['Ophidia Review', 8],
    ['Proceedings of the California Academy of Sciences', 1],
    ['Vertebrate Zoology', 11],
    ['ZooKeys', 88],
    ['Zoological Journal of the Linnean Society', 3],
    ['Zoosystema', 2],
    ['Zootaxa', 9],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=148)',
    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);