function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cunha, Rosana & Martins, Luciana & Menegola, Carla', 2],
    ['Dartnall, Alan J. & Byrne, Maria & Collins, John', 5],
    ['Gale, Andrew S.', 3],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 2],
    ['Hosagoudar, V. B. & Riju, M. C.', 2],
    ['Hosagoudar, V. B. & Robin, P. J. & Shivaraju, B.', 3],
    ['Hosagoudar, V. B. & Sabeena, A.', 2],
    ['Jangoux, Michel', 39],
    ['Mah, Christopher L.', 15],
    ['O\'Loughlin, P. M. & Waters, J. M. & Roy, M. S.', 6],
    ['O\'Loughlin, P. Mark', 7],
    ['O’Loughlin, Mark & Mackenzie, Melanie', 4],
    ['O’Loughlin, P. Mark & Bribiesca-Contreras, Guadalupe', 5],
    ['O’Loughlin, P. Mark & Waters, Jonathan M.', 26],
    ['Setiadi, Anargha', 3],
    ['Other (13)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=139)',
    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);