function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dragan P. Chobanov & Beata Grzywacz & Ionuţ Ş. Iorgu', 36],
    ['Ghahari, H. & Havaskary, M. & Tabari, M. & Ostovan, H.', 2],
    ['Hollier, John & Maehr, Michael, D.', 1],
    ['Holuša, Jaroslav & Kočárek, Petr & Vlk, Robert & Marhoul, Pavel', 2],
    ['Ingrisch, Sigfrid & Pavićević, Dragan', 2],
    ['Iorgu, Ionut Stefan', 1],
    ['Iorgu, Ionut Stefan & Iorgu, Elena Iulia', 1],
    ['Iorgu, Ionut Stefan & Iorgu, Elena Iulia & Szoevenyi, Gergely', 1],
    ['Iorgu, Ionuţ Ştefan & Heller, Klaus-Gerhard', 2],
    ['MACHÁýKOVÁ, Lenka & FIKÁýEK, Martin', 6],
    ['Márk, Kirill', 1],
    ['Orci, Kirill Márk & Szövényi, Gergely & Nagy, Barnabás', 1],
    ['Sevgili, Hasan', 2],
    ['Sevgili, Hasan & Demirsoy, Ali & Çiplak, Battal', 1],
    ['Skejo, Josip & Rebrina, Fran & Szövényi, Gergely', 4],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    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);