function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Societatis Zoologicae Bohemicae', 7],
    ['African Invertebrates', 23],
    ['American Museum Novitates', 68],
    ['Arachnida', 6],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 4, Section A, Zoologie, Biologie et Écologie d’Animal', 8],
    ['Bulletin of the American Museum of Natural History', 189],
    ['Euscorpius', 965],
    ['Evolutionary Systematics', 86],
    ['Palaeoentomology', 9],
    ['ZooKeys', 186],
    ['Zoological Journal of the Linnean Society', 21],
    ['Zoological Systematics', 32],
    ['Zoosystema', 43],
    ['Zoosystematics and Evolution', 6],
    ['Zootaxa', 196],
    ['Other (46)', 101]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1946)',
    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);