function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bayer, F. M.', 1],
    ['Broch, Hjalmar', 1],
    ['Carpinelli, Ágatha Nascimento & Cordeiro, Ralf Tarciso Silva', 1],
    ['Devictor, Susan T. & Morton, Steve L.', 3],
    ['Horvath, Elizabeth Anne', 3],
    ['Kükenthal, Willy', 1],
    ['López-González, Pablo J. & Briand, Patrck', 1],
    ['Moore, Kirrily M. & Alderslade, Philip & Miller, Karen J.', 19],
    ['Ramvilas, Ghosh & Alderslade, Philip & Ranjeet, Kutty', 5],
    ['Tu, Tzu-Hsuan & Dai, Chang-Feng', 1],
    ['Verrill, Addison Emery', 1],
    ['Watling, Les', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);