function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aydin, Esra Elif & Lee, Won Je', 4],
    ['Barros, Juliana H. S. & Lima, Luciana & Schubach, Armando O.', 1],
    ['Bejarano, Eduar Elías & Estrada, Luis Gregorio', 2],
    ['Bernal, Ximena E. & Pinto, C. Miguel', 1],
    ['Borghesan, Tarcilla & Ferreira, Robson C & Takata, Carmen SA', 5],
    ['Cigler, P. & More, G. & Bize, P. & Meier, C. M. & Frey, C. F.', 1],
    ['Fermino, Bruno & Paiva, Fernando & Soares, Priscilla', 1],
    ['Gonçalves, Teresa Cristina Monte & Novo, Shênia Patrícia Corrêa', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 5],
    ['Lee, Won Je', 7],
    ['Lee, Won Je & Patterson, David J.', 9],
    ['Miyata, Akira & Poon, Siew Kein', 2],
    ['Molinari, Jesús & Moreno, S. Andrea', 1],
    ['Tavares Lopes, Camila Madeira', 1],
    ['Tikhonenkov, Denis & Janouškovec, Jan & Keeling, Patrick J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);