function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cianferoni, Fabio & Mazza, Giuseppe', 3],
    ['Cianferoni, Fabio & Rocchi, Saverio & Terzani, Fabio', 4],
    ['Damgaard, Jakob & Moreira, Felipe Ferraz Figueiredo', 8],
    ['Fent, Meral & Kment, Petr & Çamur-Elipek, Belgin & Kirgiz, Timur', 20],
    ['Ghahari, H.', 6],
    ['Ghahari, Hassan & Moulet, Pierre & Ostovan, Hadi', 4],
    ['Konopko, Susana Amanda & Mazzucconi, Silvia Ana', 7],
    ['Krüger, Andreas & Deckert, Jürgen', 4],
    ['Linnavuori, Rauno E.', 6],
    ['Mazzucconi, Silvia Ana & Reyes, Cristina Armúa De', 3],
    ['Moreira, Felipe Ferraz Figueiredo & Barbosa, Julianna Freires', 9],
    ['Riviaux, Senén Muñoz & Moreira, Felipe Ferraz Figueiredo', 3],
    ['Shapovalov, Maksim I. & Saprykin, Maksim A.', 10],
    ['Slimani, Noura & Moulet, Pierre & Chen, Ping-Ping & Nieser, Nico', 5],
    ['Taybi, Abdelkhaleq Fouzi & Mabrouki, Youness & Chavanon, Guy', 5],
    ['Other (13)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=116)',
    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);