function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baron-Szabo, Rosemarie C.', 2],
    ['Calabon, Mark S. & Jones, E. B. Gareth & Pang, Ka-Lai', 1],
    ['Gkelis, Spyros & Ourailidis, Iordanis & Panou, Manthos', 4],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 3],
    ['Nagao, Hideyuki & Kurogi, Shuichi & Ogawa, Seiji', 1],
    ['Pierotti, Helio', 1],
    ['Pierotti, Helio & Bellò, Cesare & Alonso-Zarazaga, Miguel A.', 4],
    ['Pierotti, Helio & Fink, Thomas', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);