function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Parasitologica', 1],
    ['Archivos de Medicina Veterinaria (Valdivia)', 1],
    ['B. A. N. Z. Antarctic Research Expedition, Reports Series B (Zoology and Botany)', 1],
    ['Biodiversity Data Journal', 2],
    ['Bulletin of the Southern California Academy of Sciences', 1],
    ['Fauna Arctica', 1],
    ['Izvestiya Tikhookeanskoi Nauchno-Promyslovi Ostantsii', 1],
    ['Japanese Journal of Zoology', 1],
    ['Parassitologia', 2],
    ['Proceedings of the Academy of Sciences Allahabad', 2],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['Revue suisse de Zoologie', 2],
    ['Rivista di Parassitologia', 2],
    ['Science and Technology Press', 2],
    ['Zoologischer Anzeiger', 2],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=39)',
    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);