function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brailovsky, Harry', 7],
    ['Castro-Huertas, Valentina & Minghetti, Eugenia', 1],
    ['Coscarón, María Del Carmen & Pall, José Luis', 16],
    ['Diez, Fernando & Espindola, Milton Ruiz & Cornelis, Marcela', 2],
    ['Inés, Olivo Verónica & Coscarón, Maria Del Carmen', 1],
    ['Ishikawa, Tadashi & Saito, Masayuki U. & Kishimoto-Yamada, Keiko', 2],
    ['Krüger, Andreas & Deckert, Jürgen', 1],
    ['Leavengood, John M. & Brailovksy, Harry & Barrera, Ernesto', 14],
    ['Linares, Carlos A & Orozco, Jesus', 16],
    ['Lugo, David & Suarez, Daniel & Martin, Sonia', 1],
    ['María C. Melo & Gimena Dellapé & Leonela Olivera', 4],
    ['Usinger, Robert L.', 1],
    ['Yildirim, E. & Yazici, G. & Moulet, P.', 1],
    ['Çerçi, Bariş & Karataş, Ahmet & Karataş, Ayşegül', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=68)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);