function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barber-James, Helen M. & Zrelli, Sonia & Yanai, Zohar', 8],
    ['Domínguez, Eduardo & Grillet, Maria-Eugenia & Nieto, Carolina', 2],
    ['Eaton, Alfred Edwin', 3],
    ['L, Carlos Naranjo & Peters, Janice G. & del, Pedro López', 2],
    ['Salles, F. F. & Francischetti, C. N. & Soares, E. D. G.', 1],
    ['Salles, Frederico F. & Soares, Elaine D. G. & Massariol, Fabiana', 3],
    ['Sartori, Michel & Bauernfeind, Ernst', 1],
    ['Sroka, Pavel & Bojkova, Jindriska & Godunko, Roman J.', 2],
    ['Sroka, Pavel & Bojková, Jindřiška & Soldán, Tomáš', 3],
    ['Ubero-Pascal, Nicolás & Puig, Angels', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    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);