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],
    ['Antarctic Research Series', 1],
    ['Doklady Akademiia Nauk SSSR', 1],
    ['European Journal of Taxonomy', 4],
    ['Journal Sigenkagaku Kenkyusyo', 1],
    ['Proceedings of the United States National Museum, 3', 3],
    ['Special Bulletin of the United States National Museum', 2],
    ['Suisan Kenkiu-Shi', 1],
    ['Transactions of the Pacific Committee of the Academy of Sciences of the U. S. S. R.', 1],
    ['Transactions of the Royal Society of Edinburgh', 1],
    ['Trudy P. P. Shirshov Instytut Okeanologii', 4],
    ['Voprosy Ikhtiologii', 1],
    ['Zootaxa', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);