function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zootaxonomica Sinica', 4],
    ['Acta amazonica', 4],
    ['Archives de Parasitologie', 6],
    ['Folia Parasitologica', 3],
    ['Gayana, Zoologia', 3],
    ['Journal of Parasitology', 12],
    ['MycoKeys', 7],
    ['Papers from the Tortugas Laboratory of the Carnegie Institute of Washington', 5],
    ['Proceedings of the Helminthological Society of Washington', 6],
    ['Revista Ibérica de Parasitología', 4],
    ['Revista del Instituto Nacional de Investigación de las Ciencias Naturales y Museo Argentio de Ciencias Naturales " Bernardino Ri', 4],
    ['Revue suisse de Zoologie', 16],
    ['Systematic Parasitology', 8],
    ['Transactions of the American Microscopical Society', 6],
    ['Zootaxa', 5],
    ['Other (40)', 59]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=152)',
    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);