function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmad, J.', 2],
    ['Ahmad, J. & Dhar, R. L.', 2],
    ['Blend, Charles K. & Dronen, Norman O. & Racz, Gabor R.', 1],
    ['Bray, Rodney A.', 2],
    ['Bray, Rodney A. & Justine, Jean-Lou', 1],
    ['Caballero y C., Eduardo & Caballero R., G.', 1],
    ['Dyer, William G. & Williams, E. H. & Bunkley-Williams, Lucy', 1],
    ['Estrada-Garcia, M. A & García-Prieto, Luis', 1],
    ['Fischthal, Jacob H. & Thomas, J. D.', 1],
    ['Gupta, N. K. & Sayal, A.', 1],
    ['Hanson, Mary Louise', 2],
    ['Kruse, Günther O. W.', 1],
    ['Manter, Harold W. & Van Cleave, H. J.', 2],
    ['Nahhas, Fuad M. & Cable, Raymond M.', 3],
    ['Yamaguti, S.', 4],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    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);