function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales de Instituto de Biología, Universidad Nacional Autónoma de México, Serie Zoologia', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 5],
    ['Archivos da Escola Superior de Medicina Veterinaria Nictheroy', 1],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 2],
    ['Hukuoka Acta Medica', 1],
    ['Japanese Journal of Zoology', 1],
    ['Journal of Parasitology', 1],
    ['Journal of the Royal Society of New South Wales', 1],
    ['Parasitology', 1],
    ['Parasitology Research', 2],
    ['Proceedings of the Helminthological Society of Washington', 2],
    ['Scientific Survey of Porto Rico and the Virgin Islands', 5],
    ['ZooKeys', 1],
    ['Zootaxa', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);