function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cybium', 1],
    ['Journal and Proceedings of the Asiatic Society of Bengal', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Report of the Fisheries and Marine Biological Survey, Union of South Africa', 1],
    ['Report on the Scientific Results of the Voyage of H. M. S. “ Challenger ” during the Years 1873 - 76 under the Command of Captai', 1],
    ['Sci. Reports, John Murray Exped.', 3],
    ['Smithsonian Miscellaneous Collections', 1],
    ['Species Diversity', 1],
    ['Treubia, Mus. Zool. Borgoriense', 1],
    ['Zootaxa', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);