function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Parasitologica', 21],
    ['Acta Parasitologica Polonica', 15],
    ['Allan Hancock Pacific Expeditions', 13],
    ['Japanese Journal of Zoology', 38],
    ['Journal of Parasitology', 50],
    ['Keigaku Publishing Company', 31],
    ['Oceanologia et Limnologia Sinica', 15],
    ['Papers from the Tortugas Laboratory of the Carnegie Institute of Washington', 15],
    ['Proceedings of the Helminthological Society of Washington', 24],
    ['Rivista di Parassitologia', 24],
    ['Satyû Yamaguti', 23],
    ['Systematic Parasitology', 41],
    ['Wuyi Science Journal', 15],
    ['ZooKeys', 34],
    ['Zootaxa', 63],
    ['Other (174)', 485]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=907)',
    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);