function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archidona-Yuste, Antonio & Cantalapiedra-Navarrete, Carolina', 5],
    ['Barsalote, Eda Marie & Pham, Hoa Thi & Lazarova, Stela', 1],
    ['Groza, Mariana & Lazarova, Stela & Luca, Francesca De', 1],
    ['Gutierrez-Gutierrez, Carlos & Santos, Margarida Teixeira', 3],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 3],
    ['Lazarova, Stela S. & Elshishka, Milka & Radoslavov, Georgi', 2],
    ['Peneva, Vlada K. & Lazarova, Stela S. & Luca, Francesca De', 1],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 1],
    ['Sirca, Sasa & Urek, Gregor & Lazarova, Stela & Elshishka, Milka', 1],
    ['Zeng, Yongsan & Ye, Weimin & Tredway, Lane & Martin, Samuel', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);