function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alkusairy, Hasan & Saad, Adib', 1],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Baranes, Albert', 1],
    ['Barbosa du Bocage, José Vicente & de Brito Capello, F.', 3],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 4],
    ['Ebert, David A. & White, William T. & Ho, Hsuan-Ching', 2],
    ['Ebert, David A. & Wintner, Sabine P. & Kyne, Peter M.', 6],
    ['Engelhardt, R.', 2],
    ['Fernando, Daniel & Bown, Rosalind M. K. & Tanna, Akshay', 2],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 2],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 2],
    ['Straube, Nicolas & White, William T. & Ho, Hsuan-Ching', 4],
    ['Thompson, E. F.', 2],
    ['White, William T. & Ebert, David A. & Naylor, Gavin J. P.', 3],
    ['White, William T. & Ko’Ou, Alfred', 5],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=53)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);