function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Khazali, Azhar Mohammed & Kachel, Hamid Saeid', 1],
    ['Fomichev, A. A. & Marusik, Yu. M.', 1],
    ['Fomichev, Alexander A. & Marusik, Yuri M.', 3],
    ['Levy, Gershom', 1],
    ['Marusik, Yuri M. & Fomichev, Alexander A. & Omelko, Mikhail M.', 21],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 1],
    ['Ponomarev, A. V. & Bragina, T. M. & Shmatko, V. Yu.', 1],
    ['Ponomarev, Alexandr V.', 1],
    ['Ponomarev, Alexandr V. & Tsvetkov, A. S.', 2],
    ['ZONSTEIN, SERGEI & MARUSIK, YURI M.', 1],
    ['Zamani, Alireza & Chatzaki, Maria & Esyunin, Sergei L.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);