function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhutta, M. S. & Khan, D.', 1],
    ['Bilqees, Fatima Mujib', 1],
    ['Bush, A. O. & Holmes, John C.', 1],
    ['Chandler, Asa C.', 1],
    ['Crowcroft, Peter W.', 1],
    ['Fischthal, Jacob H. & Kuntz, Robert E', 1],
    ['Gupta, P. C. & Govind, H.', 2],
    ['Gupta, P. C. & Gupta, V. C.', 3],
    ['Looss, A.', 2],
    ['Manter, Harold W.', 7],
    ['Manter, Harold W. & Pritchard, M. H.', 2],
    ['Shen, J. - w.', 3],
    ['Srivastava, H. D.', 2],
    ['Vigueras, I. P.', 4],
    ['Yamaguti, S.', 8],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);