function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Medica Okayama', 1],
    ['Acta Medicinae Okayama', 2],
    ['Acta Parasitologica Polonica', 1],
    ['Allan Hancock Pacific Expeditions', 2],
    ['Anales de la Escuela Nacional de Ciencias Biológicas, México,', 2],
    ['Bulletin of the Society of Zoology of Egypt', 2],
    ['Israel Journal of Entomology', 2],
    ['Journal of Parasitology', 13],
    ['Proceedings of the Helminthological Society of Washington', 2],
    ['Science Press', 2],
    ['Systematic Parasitology', 2],
    ['Transactions of the Biogeographical Society of Japan', 3],
    ['Trudy Morskoi Nauchnyi Institut, Moskva', 2],
    ['Zoologica Scripta', 2],
    ['Zootaxa', 9],
    ['Other (19)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=66)',
    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);