function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allgemeine Encyclopädie der Wissenschaften und Künste (Ersch u. Gruber), 1. Sect.,', 1],
    ['Biodiversity Data Journal', 8],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 7],
    ['Izv Donsk Vet Inst Novogerkassk', 1],
    ['Japanese Journal of Experimental Medicine', 1],
    ['Japanese Journal of Zoology', 4],
    ['Journal of Parasitology', 1],
    ['Journal of helminthology', 1],
    ['Neotropica, La Plata', 1],
    ['Philippine Journal of Science', 1],
    ['Proceedings of the National Academy of Sciences of India Allahabad', 1],
    ['Science Press', 1],
    ['Scientific Survey of Porto Rico and the Virgin Islands', 1],
    ['Zoodiversity', 3],
    ['Zootaxa', 19],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=54)',
    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);