function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annali del Museo Civico di Storia Naturale di Genova', 1],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 6],
    ['Avacient', 1],
    ['Bulletin de la Société Philomatique de Paris, serie 7', 1],
    ['Bulletin de la Société Zoologique de France', 2],
    ['Deterville', 1],
    ['Journal of Arachnology', 4],
    ['L\'Institute, Journal Général des Sociétés et Travaux Scientifiques de la France et de l\'Étranger', 3],
    ['Memorias de la Instituto Nacional de Investigaciones Cientifico y Museo Historia Natural, La Habana', 1],
    ['Memorias y revista de la Sociedad Científica " Antonio Alzate. "', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Recueil Zoologique Suisse, Series 1', 1],
    ['Revista Belén, La Habana', 2],
    ['Transactions of the American Philosophical Society, New Series', 2],
    ['Zootaxa', 11],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=41)',
    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);