function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alexiou, Sotiris', 3],
    ['Della Rocca, Francesca & Stefanelli, Silvia & Cardarelli, Elisa', 1],
    ['Desutter-Grandcolas, Laure', 4],
    ['Farooqi, Mohd Kaleemullah & Ali, Mohd & Amir, Mohammad', 2],
    ['Fontana, Paolo & Buzzetti, Filippo M. & Kleukers, Roy M. J. C.', 1],
    ['Ghahari, H. & Havaskary, M. & Tabari, M. & Ostovan, H.', 5],
    ['Holuša, Jaroslav & Kočárek, Petr & Vlk, Robert & Marhoul, Pavel', 2],
    ['Jaiswara, Ranjana & Shah, Muzamil Syed & Ali, Ahsan', 2],
    ['Massa, Bruno & Fontana, Paolo', 2],
    ['Monnerat C. & Thorens P. & Walter T. & Gonseth Y.', 4],
    ['Skejo, Josip & Rebrina, Fran & Szövényi, Gergely', 4],
    ['Skejo, Josip & Rebrina, Fran & Tvrtković, Nikola', 2],
    ['Temreshev, Izbasar I. & Makezhanov, Arman M.', 2],
    ['Çiplak, Battal & Heller, Klaus-Gerhard & Demirsoy, Ali', 19],
    ['Ünal, Mustafa', 20],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=77)',
    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);