function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alonso, G. M.', 1],
    ['Azman, B. A. R. & Othman, B. H. R.', 1],
    ['Bate, Charles Spence', 1],
    ['Coleman, Charles Oliver', 1],
    ['D\'Acoz, Cédric D\'Udekem', 3],
    ['Marin, Ivan', 1],
    ['Myers, A. A.', 1],
    ['Rousou, Maria & Plaiti, Wanda & Lowry, Jim', 1],
    ['d, Cédric & d, Udekem & Acoz & Vader, Wim', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);