function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akademiia Nauk SSSR, Trudy P. P. Shirshov Instytut Okeanologii', 1],
    ['Annals and Magazine of Natural History', 2],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 1],
    ['Copeia', 2],
    ['Cybium', 2],
    ['European Journal of Taxonomy', 7],
    ['Galathea Report', 4],
    ['Journal of the Fisheries Research Board of Canada', 1],
    ['Masson', 1],
    ['Neotropical Ichthyology', 1],
    ['Rep. Swed. Deep-Sea Exped. 1947 - 48', 2],
    ['Steenstrupia', 1],
    ['Voprosy Ikhtiologii', 1],
    ['Zootaxa', 30],
    ['“ Meteor ” Forschungsergebnisse, D', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=57)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);