function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin of the United States Fish Commission', 1],
    ['Bulletin of the Vanderbilt Marine Museum', 1],
    ['Memoires de la Sociedad de Ciencias Naturales La Salle', 1],
    ['Proceedings of the California Academy of Sciences, Series 1', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Revista Sociedad Mexicana de Historia Natural', 1],
    ['Revista de Biologia Tropical', 1],
    ['Zootaxa', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);