function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Arch. Escola Super. Agrie, e Med. Vet., Rio de Janeiro', 2],
    ['Bulletin de la Société Zoologique de France', 1],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 1],
    ['Fort Hare Papers', 1],
    ['Fujian Shida Xuebao', 2],
    ['Journal of helminthology', 1],
    ['Onderstepoort Journal of Veterinary Science and Animal Industry', 1],
    ['Philippine Journal of Science', 1],
    ['Philippine Journal of Science, Section D', 1],
    ['Philippine journal of science', 2],
    ['Proceedings of the Helminthological Society of Washington', 1],
    ['Proceedings of the National Academy of India', 1],
    ['Records of the Canterbury Museum', 1],
    ['Snake', 1],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=23)',
    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);