function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 4],
    ['Bulletin de la Société Zoologique de France', 4],
    ['Eos, Madrid', 5],
    ['Eos, Revista Española de Entomología', 2],
    ['Journal of Threatened Taxa', 4],
    ['Mitteilungen aus dem Mineralogisch-Geologischen Staatsinstitut in Hamburg', 2],
    ['Mémoires du Muséum National d’Histoire Naturelle', 5],
    ['Oriental insects', 4],
    ['Pacific Insects', 2],
    ['Southwestern Naturalist', 2],
    ['Travaux de l\'Institute de Zoologique de l\'Académie Sciences de l\'U. R. S. S.', 2],
    ['ZooKeys', 8],
    ['Zoologische Jahrbücher, Abteilung für Systematik, Ökologie und Geographie der Tiere', 44],
    ['Zootaxa', 26],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=130)',
    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);