function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahyong, Shane T.', 1],
    ['Ando, Yusuke & Kawano, Shigenori & Muramiya, Yusuke', 1],
    ['Castro, Peter', 2],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['Filho, Petrônio Alves Coelho', 1],
    ['Komatsu, Hironori & Takeda, Masatsune', 1],
    ['Naderloo, Reza & Türkay, Michael', 1],
    ['Naruse, Tohru & Ng, Peter K. L.', 1],
    ['Ossó, Àlex & Gagnaison, Cyril & Gain, Olivier', 2],
    ['Shih, Yi-Jia & Ho, Ping-Ho & Chan, Tin-Yam', 1],
    ['de Man, Johannes Govertus', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);