function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adansonia', 73],
    ['Beiblatt zu den Botanischen Jahrbuchern', 2],
    ['Bishop Museum Bulletins in Botany', 59],
    ['Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie.', 27],
    ['Candollea', 18],
    ['Check List', 3],
    ['Edinburgh Journal of Botany', 11],
    ['Journal of Botany, British and Foreign, London', 6],
    ['Journal of the Arnold Arboretum', 32],
    ['Nova Guinea. Contributions to the anthropology, botany, geology and zoology of the Papuan region. Botany', 15],
    ['Papéis Avulsos de Zoologia', 7],
    ['Phytotaxa', 18],
    ['Proceedings of the Royal Society of Queensland', 3],
    ['SIDA, Contributions to Botany', 5],
    ['Transactions of the Linnean Society of London, Second Series. Botany', 4],
    ['Other (8)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=294)',
    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);