function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Parasitologica', 1],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Bulletin of the British Museum (Natural History), Zoology Series', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 2],
    ['Bulletin of the National Science Museum, Series A, Zoology', 1],
    ['Deterville', 1],
    ['Journal of Natural History', 9],
    ['Journal of Parasitology', 2],
    ['Papéis Avulsos de Zoologia', 2],
    ['Parasite', 4],
    ['Revue suisse de Zoologie', 56],
    ['Systematic Parasitology', 21],
    ['Vestnik Zoologii', 7],
    ['ZooKeys', 15],
    ['Zootaxa', 552],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=684)',
    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);