function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 2],
    ['Anales del Museo Nacional de Historia Natural de Buenos Aires, Serie 3', 4],
    ['Anales del Museo Nacional de Historia Natural de Montevideo, Serie 2', 1],
    ['Annals of the Carnegie Museum', 1],
    ['Anzeiger', 1],
    ['Boletim do Muse Nacional, Série Zoologia', 1],
    ['Boletim do Museu Nacional Rio de Janeiro, Zoologia', 2],
    ['Copeia', 1],
    ['Ind. Univ. Studies', 3],
    ['Memoirs of the Carnegie Museum', 4],
    ['Notulae Naturae', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Proceedings of the American Philosophical Society', 4],
    ['Proceedings of the California Academy of Sciences, Series 2', 2],
    ['Zootaxa', 5],
    ['Other (6)', 6]
  ]);
  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);