function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. W', 1],
    ['Boustani, Mira & Rasmont, Pierre & Dathe, Holger H.', 1],
    ['Byvaltsev, A. M. & Belova, K. A. & Danilov, Yu. N.', 2],
    ['CockerellL, T. D. A.', 1],
    ['Ebmer, A. W.', 1],
    ['F. J & Ornosa, C. & Torres, F.', 2],
    ['Gonzalez, Victor H. & Engel, Michael S. & Lucia, Mariano', 1],
    ['Güler, Y.', 2],
    ['Khodaparast, Razeyeh & Monfared, Alireza', 1],
    ['Lhomme, Patrick', 3],
    ['Maharramov, M. M. & Fateryga, A. V. & Proshchalykin, M. Yu.', 3],
    ['Nkulu, Alain Tshibungu & Pauly, Alain & Dorchin, Achik', 3],
    ['Pauly, Alain & Villemant, Claire', 1],
    ['RAMOS, KELLI S. & KAWADA, RICARDO & BRANDÃO, CARLOS ROBERTO F.', 1],
    ['Zettel, Herbert & Ockermüller, Esther & Schoder, Sabine', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);