function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Medica Okayama', 1],
    ['Actualidades Biologicas (Medellin)', 1],
    ['Agricultural Publishing House', 3],
    ['Annales du Musée Royal du Congo Belge, Série 5, Zoologiques', 2],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Archiv für Naturgeschichte', 1],
    ['Bolletino della Società Adriatica di Scienze Naturali in Trieste', 1],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 4],
    ['Indian Journal of Helminthology', 7],
    ['Japanese Journal of Zoology', 2],
    ['Journal of Parasitology', 2],
    ['Oefvers. K. Vetensk. - Akad. Förh.', 2],
    ['Papers from the Tortugas Laboratory of the Carnegie Institute of Washington', 2],
    ['Report on the Scientific Investigations. Northumberland Sea fisheries Committee', 2],
    ['Studia Marina Sinica', 3],
    ['Other (23)', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=57)',
    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);