function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abhandlungen aus dem Gebiete die Naturwissenschaftlichen Verein', 1],
    ['Anales del Museo Argentino de Ciencias Naturales', 7],
    ['Annaes da Academia Brasileira de Sciencias', 4],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 2],
    ['Arthropod Systematics & amp; Phylogeny', 7],
    ['Brooklyn Museum, The Brooklyn Institute of Arts and Sciences, Science Bulletin', 2],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College.', 1],
    ['Journal of arachnology', 2],
    ['Journal of the New York Entomological Society', 1],
    ['Mitteilungen aus dem Naturhistorischen Museum in Hamburg', 2],
    ['Notas del Museo de La Plata', 2],
    ['Physis, Buenos Aires', 1],
    ['Proceedings of the Biological Society of Washington', 1],
    ['Zootaxa', 16],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=53)',
    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);