function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales de la Escuela Nacional de Ciencias Biologicas', 1],
    ['Anales del Museo Nacional de Historia Natural de Montevideo, Serie 2', 3],
    ['Bijdragen tot de Dierkunde', 1],
    ['Bol. Soc. Nac. Agric., Rio de Janeiro [Lavoura]', 1],
    ['Bulletin of Marine Science', 1],
    ['Bulletin of the United States Fish Commission', 1],
    ['Bulletin of the United States National Museum', 1],
    ['Cah. Indo-Pacif.', 1],
    ['Ceylon Journal of science / annals botanic garden peradeniya, Section B. Z', 1],
    ['E. J. Brill', 3],
    ['European Journal of Taxonomy', 1],
    ['Journal of the Ocean Science Foundation', 1],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Species Diversity', 5],
    ['Zootaxa', 7],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=35)',
    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);