function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Tropica', 1],
    ['Arkiv för zoologi, 2', 2],
    ['Folia Parasitologica', 2],
    ['Frontiers in Marine Science', 2],
    ['Meiofauna Marina', 3],
    ['Nature', 4],
    ['Proceedings of the Biological Society of Washington', 4],
    ['Proceedings of the Japanese Society of Systematic Zoology', 2],
    ['Public Library of Science, ONE', 12],
    ['Species Diversity', 3],
    ['Systematics and Biodiversity', 2],
    ['The Edinburgh New Philosophical Journal, new series', 3],
    ['Zoologica Scripta', 4],
    ['Zoological Science', 10],
    ['Zoologischer Anzeiger', 3],
    ['Other (17)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=74)',
    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);