function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Attwood, S. W. & Panasoponkul, C. & Upatham, E. S. & Meng, X. H.', 1],
    ['Brumpt, E.', 2],
    ['Chandler, Asa C.', 1],
    ['Fisher, A. C.', 1],
    ['Garcia, E. Y.', 1],
    ['Greer, George J. & Ow-Yang, C. K. & Yong, Hoi-Sen', 1],
    ['Hanelt, Ben & Brant, S. V. & Steinauer, M. l. & Maina, G. M.', 1],
    ['Katsurada, F.', 1],
    ['Le Roux, Philippus Lodewicus', 1],
    ['Montgomery, Robert Eustace', 3],
    ['Mudaliar, S. V. & Ramanujachary, G.', 1],
    ['Pages, Jean-Rene & Jourdane, Joseph & Southgate, Vaughan R.', 1],
    ['Pao, T. C.', 1],
    ['Rao, M. A. N.', 1],
    ['Thurston, J. P.', 2],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    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);