function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andrade-Sorcia, Gabriela & Riosmena-Rodríguez, Rafael', 5],
    ['Chakraborty, Kajal & Dhara, Shubhajit', 1],
    ['Coppejans, Eric & Leliaert, Frederik & Verbruggen, Heroen', 3],
    ['Davidson, Alisha D. & Campbell, Marnie L. & Hewitt, Chad L.', 1],
    ['Falace, Annalisa & Manfrin, Chiara & Furnari, Giovanni', 3],
    ['Jarvis, Charlie', 4],
    ['Koretsky, I. A. & Rahmat, S. J. & Peters, N.', 1],
    ['Mulas, Martina & Neiva, João & Sadogurska, Sofia S.', 1],
    ['Sadogurska, Sofia S. & Neiva, João & Falace, Annalisa', 2],
    ['Santiañez, Wilfred John E. & Lastimoso, John Michael L.', 4],
    ['Serio, Donatella & Furnari, Giovanni', 4],
    ['Tu, Nguyen Van', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);