function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baillon, Henri Ernest', 10],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 1],
    ['Gibbs, Lilian Suzette', 2],
    ['Harms, Hermann August Theodor', 18],
    ['Jarvis, Charlie', 1],
    ['Lauterbach, Carl (Karl) Adolf Georg', 27],
    ['Leal, Eduardo Da Silva & Costa, Denise Pinheiro Da', 1],
    ['Philipson, William Raymond', 8],
    ['Ridley, Henry Nicholas', 5],
    ['Royen, Pieter van', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=82)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);