function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 2],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 16],
    ['Gofas, Serge & Luque, Ángel A. & Oliver, Joan Daniel', 5],
    ['Hansen, Thomas', 4],
    ['Helwerda, Renate A. & Wesselingh, Frank P.', 6],
    ['Herbert, David G.', 61],
    ['Luca, Javier Di & Zelaya, Diego G.', 4],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 6],
    ['McGhie, Henry', 4],
    ['Muratov, Igor V. & Heyns-Veale, Elodie', 14],
    ['Negri, Mauro Pietro & Corselli, Cesare', 3],
    ['Ortega, José Rafael & Gofas, Serge', 4],
    ['Pacaud, Jean-Michel', 19],
    ['Simone, Luiz Ricardo L. & Cunha, Carlo M.', 31],
    ['Tasso, Vicente & El Haddad, Mustapha & Assadi, Carolina', 5],
    ['Other (21)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=214)',
    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);