function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Steger, Jan & Bakker, Piet A. J.', 1],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 4],
    ['Fasulo, Giuseppe & Duraccio, Sergio & Federico, Antonio', 1],
    ['Gofas, Serge & Luque, Ángel A. & Oliver, Joan Daniel', 2],
    ['Hernández, José Amet Rivaz & Deshmukh, Umakant Bhoopati', 1],
    ['Hori, Shigeo & Fukuda, Hiroshi', 2],
    ['Kiel, Steffen & Sami, Marco & Taviani, Marco', 2],
    ['Luca, Javier Di & Zelaya, Diego G.', 2],
    ['Lygre, Frøydis & Kongsrud, Jon Anders & Schander, Christoffer', 5],
    ['Lygre, Frøydis & Schander, Christoffer', 6],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 2],
    ['Peñas, A. & Rolán, E. & Swinnen, Frank', 2],
    ['Pimenta, Alexandre D. & Absalão, Ricardo S.', 7],
    ['S & Absalão, Ricardo Silva & Santos, Franklin Noel', 6],
    ['Thivaiou, Danae & Harzhauser, Mathias & Koskeridou, Efterpi', 5],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    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);