function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bellvert, Adrià & Dimitrov, Dragomir & Zamani, Alireza', 9],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 9],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 16],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 12],
    ['Fomichev, Alexander A. & Marusik, Yuri M.', 7],
    ['Guecel, Salih & Charalambidou, Iris & Goecmen, Bayram', 4],
    ['Hernández-Corral, Jesús', 12],
    ['Isaia, Marco & Paschetta, Mauro & Chiarle, Alberto', 4],
    ['Kunt, Kadir Boğaç & Özkütük, Recep Sulhi', 11],
    ['Marjan Komnenov & Eva Pitta & Konstantina Zografou', 7],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 5],
    ['Reboleira, Ana Sofia P. S. & Pérez, Antonio José', 29],
    ['Zamani, Alireza & Marusik, Yuri M.', 18],
    ['Zamani, Alireza & Marusik, Yuri M. & Szűts, Tamas', 21],
    ['Řezáč, Milan & Cardoso, Pedro & Řezáčová, Veronika', 18],
    ['Other (35)', 65]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=247)',
    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);