function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annaes da Academia Brasileira de Sciencias', 2],
    ['Annales de la Société Entomologique de France, Séries 1 - 6', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 6],
    ['Annals of the South African Museum', 1],
    ['Bulletin de la Société Zoologique de France', 3],
    ['Jahrbüchern des Nassauischen Vereins für Naturkunde in Wiesbaden', 1],
    ['Memorias do Instituto Butantan', 1],
    ['Mémoires du Muséum National d’Histoire Naturelle', 2],
    ['Records of the Indian Museum', 1],
    ['Spolia Zeylanica [Ceylon Journal Sci], Section B-Zoo', 1],
    ['Transactions of the Connecticut Academy of Arts and Sciences', 1],
    ['Zoologischer Anzeiger', 2],
    ['Zootaxa', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);