function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almeida, Ana C. S. & Souza, Facelucia B. C. & Menegola, Carla', 1],
    ['Fehlauer-Ale, Karin H. & Vieira, Leandro M. & Winston, Judith E.', 2],
    ['Froglia, Carlo & Clark, Paul F.', 1],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 16],
    ['Gordon, Dennis P. & Spencer-Jones, Mary', 4],
    ['Hirose, M. & Gordon, D. P.', 4],
    ['Seo, Ji-Eun & Chae, Hyun Sook & Winston, Judith E.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);