function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Khazali, Azhar Mohammed & Kachel, Hamid Saeid', 2],
    ['Arnedo, Miquel & Gasparo, Fulvio & Opatova, Vera', 3],
    ['Bellvert, Adrià & Dimitrov, Dragomir & Zamani, Alireza', 9],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 6],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 8],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 6],
    ['Fomichev, Alexander A. & Marusik, Yuri M.', 7],
    ['Hernández-Corral, Jesús', 6],
    ['Isaia, Marco & Chiarle, Alberto', 2],
    ['Isaia, Marco & Paschetta, Mauro & Chiarle, Alberto', 2],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 3],
    ['Reboleira, Ana Sofia P. S. & Pérez, Antonio José', 29],
    ['Zamani, Alireza & Marusik, Yuri M.', 10],
    ['Zamani, Alireza & Marusik, Yuri M. & Szűts, Tamas', 16],
    ['Other (11)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=126)',
    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);