function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Medicinae Okayama', 2],
    ['Allan Hancock Pacific Expeditions', 1],
    ['Biodiversity Data Journal', 1],
    ['Indian Journal of Parasitology', 1],
    ['Indian Journal of Veterinary Science', 2],
    ['International Journal for Parasitology', 1],
    ['Izvestiya Tikhookeanskoi Nauchno-Promyslovi Ostantsii', 1],
    ['Japanese Journal of Zoology', 2],
    ['Journal of Parasitology', 1],
    ['Journal of the Egyptian Society of Parasitology', 1],
    ['Satyû Yamaguti', 2],
    ['Science Press', 3],
    ['Scientific Survey of Porto Rico and the Virgin Islands', 2],
    ['Studia Marina Sinica', 3],
    ['Systematic Parasitology', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=37)',
    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);