function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 16],
    ['Bollettino delle Sedute dell’Accademia Gioenia di Scienze Naturali in Catania', 3],
    ['Bulletin de la Societe Vaudoise des Sciences Naturelles', 3],
    ['Dorylaimida Mundi (Nematoda): Checklist of genera and species, with their records', 6],
    ['Fragmenta Faunistica', 4],
    ['Fundam. appl. Nematol.', 4],
    ['Instituto Lombardo (Rend. Sc.)', 4],
    ['Journal of Nematode Morphology and Systematics', 5],
    ['Khumbu Himal', 3],
    ['Korean Journal of Applied Entomology', 3],
    ['Mededelingen Landbouwhogeschool Wageningen', 5],
    ['Nematologica', 14],
    ['Nematology', 24],
    ['Pedozoologica Hungarica', 3],
    ['Records of the Zoological Survey of India', 16],
    ['Other (18)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=140)',
    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);