function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allan Hancock Pacific Expeditions', 1],
    ['Boletin Chileno de Parasitologia', 1],
    ['Bulletin of Marine Science of the Gulf and Caribbean', 1],
    ['Bulletin of the National Science Museum, Series A, Zoology', 2],
    ['California Fish and Game', 1],
    ['Folia Parasitologica', 1],
    ['Journal of Parasitology', 1],
    ['Journal of helminthology', 1],
    ['Proceedings of Parasitology', 2],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['Proceedings of the United States National Museum, 3', 4],
    ['Secretaria de Educacion Publica', 2],
    ['Tulane Studies in Zoology', 3],
    ['Wuyi Science Journal', 2],
    ['Zoological Science', 2],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=35)',
    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);