function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baugh, S. C.', 1],
    ['Chatterji, P. N.', 1],
    ['Fischthal, Jacob H. & Kuntz, Robert E', 1],
    ['Li, M. - m.', 1],
    ['Nicoll, W.', 2],
    ['Padmavathi, P.', 1],
    ['Tang, C. & Jiang, C. - f.', 1],
    ['Zhu, H. & Gu, C. - d.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);