function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boxshall, Geoff A. & Jaume, Damià', 1],
    ['CHATTERJEE, TAPAS & KOTOV, ALEXEY A. & DAMME, KAY VAN', 1],
    ['El-Sherbiny, Mohsen M. & Al-Aidaroos, Ali M.', 1],
    ['Guerne, Jules de & Richard, Jules', 1],
    ['Gutiérrez-Aguirre, Martha Angélica & Suárez-Morales, Eduardo', 1],
    ['Kotov, Alexey A. & Ferrari, Frank D.', 1],
    ['Pugh, P. J. A. & Dartnall, H. J. G. & McInnes, S. J.', 8],
    ['Quinlan, K. & Bayly, A. E', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);