function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Avicennia', 1],
    ['Biodiversity Data Journal', 1],
    ['Gazelle The Palestinian Biological Bulletin', 1],
    ['Iwanami Shoten', 3],
    ['Journal of Natural History', 1],
    ['Journal of molluscan studies', 1],
    ['Journal of the Elisha Mitchell Scientific Society', 1],
    ['Kamchatpress', 1],
    ['New Zealand Journal of Zoology', 1],
    ['Proceedings of the Royal Zoological Society of New South Wales', 2],
    ['Publications of the Seto Marine Biological Laboratory', 3],
    ['Veliger', 2],
    ['ZooKeys', 5],
    ['Zoological Journal of the Linnean Society', 21],
    ['Zootaxa', 23],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=71)',
    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);