function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adansonia', 20],
    ['Allertonia', 8],
    ['Biodiversity Data Journal', 13],
    ['Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie.', 21],
    ['Candollea', 20],
    ['Check List', 53],
    ['Journal of the Arnold Arboretum', 14],
    ['Kew Bulletin', 20],
    ['Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem', 21],
    ['Order out of Chaos. Linnaean Plant Types and their Types', 11],
    ['Palms Journal', 8],
    ['Phytotaxa', 308],
    ['Repertorium Specierum Novarum Regni Vegetabilis', 12],
    ['Zoosystema', 14],
    ['Zootaxa', 19],
    ['Other (24)', 65]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=627)',
    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);