function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['1. Conf. Soc Sud-Am. Hig.', 3],
    ['Acta Zoologica Sinica', 4],
    ['Acta Zootaxonomica Sinica', 4],
    ['Arch. Escola Super. Agrie, e Med. Vet., Rio de Janeiro', 7],
    ['Biodiversity Data Journal', 9],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 4],
    ['Exploration du Parc national Congo Belge Miss Baer & Gerber', 4],
    ['Journal of Parasitology', 8],
    ['Journal of helminthology', 8],
    ['Memórias do Instituto Oswaldo Cruz', 4],
    ['Osnovy Trematodologii', 4],
    ['Parazitologicheskii Sbornik', 5],
    ['Proceedings of the Helminthological Society of Washington', 13],
    ['Zoologische Jahrbuecher Abteilungen für Systematik', 5],
    ['Zootaxa', 20],
    ['Other (93)', 133]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=235)',
    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);