function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bravo-Hollis, Margarita & Manter, Harold W.', 1],
    ['Bray, Rodney A. & Cribb, Thomas H.', 2],
    ['Bray, Rodney A. & Cribb, Thomas H. & Justine, Jean-Lou', 7],
    ['Bray, Rodney A. & Justine, Jean-Lou', 1],
    ['Hussain, Syed Altaf & Hanumantha Rao, K. & Shyamasundari, K.', 1],
    ['Kacem, Hichem & Derbel, Hela & Neifar, Lassad', 1],
    ['Muniz-Pereira, Luís C. & Vieira, Fabiano M. & Luque, José L.', 1],
    ['Ozaki, Yoshimasa', 1],
    ['Shen, J. - w.', 1],
    ['Yamaguti, S.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);