function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Scholae Med. Univ. Imp. Kyoto', 1],
    ['Acta Zootaxonomica Sinica', 2],
    ['Biodiversity Data Journal', 2],
    ['Bulletin international de l\'Académie Polonaise des Sciences et des Lettres. Classe des sciences mathématiques et naturelles', 1],
    ['Bulletin of the Fan Memorial Institute of Biology', 1],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten, Abteilung 1, Originale', 2],
    ['Izdatelstvo Akademii Nauk SSSR.', 1],
    ['Philippine Journal of Science, Section D', 1],
    ['Proceedings of the National Academy of Sciences, India, Section B, Biological Sciences', 1],
    ['Revue suisse de zoologie', 1],
    ['Taiwan Igakkwai Zasshi, Taihoku', 1],
    ['Trudy Gelmintologicheskoi Laboratorii Akademiya Nauk SSSR', 1],
    ['Verhandlungen der Schweizerischen Naturforschenden Gesellschaft', 1],
    ['Veterinarsky Casopis', 1],
    ['Zeitschrift für Parasitenkunde', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=19)',
    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);