function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araya, Juan Francisco & Reid, David G.', 1],
    ['Dall, William Healey', 1],
    ['Gray, John Edward', 1],
    ['Martín-González, Esther & Vera-Peláez, José Luis', 2],
    ['McGhie, Henry', 1],
    ['Mead, A. & Carlton, J. T. & Griffiths, C. L. & Rius, M.', 1],
    ['Moore, Charles', 2],
    ['Qi, Lu & Xu, Biyang & Kong, Lingfeng & Li, Qi', 2],
    ['Reid, DG & Williams, ST', 13],
    ['Reid, David G.', 43],
    ['Reid, David G. & Aravind, Neelavara Ananthram', 10],
    ['Sowerby, James DeCarle', 1],
    ['Strong, Ellen E.', 1],
    ['Tasso, Vicente & El Haddad, Mustapha & Assadi, Carolina', 1],
    ['Zvonareva, Sofya & Kantor, Yuri', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=86)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);