function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales de la Sociedad Cientifica Argentina', 2],
    ['Anales del Museo Nacional de Historia Natural de Buenos Aires', 3],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 2],
    ['Ballière', 8],
    ['Biodiversity Data Journal', 196],
    ['European Journal of Taxonomy', 4],
    ['Journal of Hymenoptera Research', 5],
    ['Journal of Natural History', 8],
    ['Linzer biologische Beiträge', 51],
    ['The Entomological Magazine', 9],
    ['Vestnik Zoologii', 11],
    ['ZooKeys', 11],
    ['Zoological Journal of the Linnean Society', 41],
    ['Zoosystema', 14],
    ['Zootaxa', 137],
    ['Other (18)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=524)',
    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);