function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales de la Universidad de Chile, Memorias Cientificas y Literarias', 1],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 2],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['European Journal of Taxonomy', 2],
    ['Fauna of Saudi Arabia', 1],
    ['Geodiversitas', 1],
    ['J. L. B. Smith Institute of Ichthyology Special Publication', 1],
    ['Philippine Journal of Science, Section D', 1],
    ['Proceedings of the California Academy of Sciences, Series 4', 1],
    ['Proceedings of the National Institute of Sciences in India', 1],
    ['Publications Marine Biological Station Al Ghardaqa', 1],
    ['Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen', 1],
    ['Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien', 1],
    ['Zootaxa', 25],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=43)',
    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);