function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales del Museo Nacional de Historia Natural de Buenos Aires, Serie 3', 1],
    ['Annales de la Société Impériale d\'Agriculture, Histoire Naturelle de Lyon', 1],
    ['Annals of the Natal Museum', 1],
    ['Biodiversity Data Journal', 2],
    ['Bishop Museum Occasional Papers', 2],
    ['Bol. Soc. Nac. Agric., Rio de Janeiro [Lavoura]', 1],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Bulletin of the United States Fish Commission', 2],
    ['Comptes Rendus de l’Academie des Sciences de Paris, 3', 1],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Raffles Bulletin of Zoology', 2],
    ['Revista Chilena de Historia Natural', 2],
    ['Species Diversity', 3],
    ['Zoological Studies', 2],
    ['Zootaxa', 46],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=84)',
    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);